Network card for a computer. How to find out which network card is on your computer

In the world of technological progress and global computerization, rapidly developing technologies have touched every modern user. Access to World Wide Web is no longer limited to using only a computer.

Today, in every home, almost all family members, young and old, have one or more various devices with network access. It is very convenient in this case to set the point Wi-Fi access and distribute a signal to any connected equipment. Modern devices, such as laptops, tablets, phones, have built-in Wi-Fi receivers, making them easy to connect to a network.

LAN card, or network adapter, is an integral part of the computer that determines its interaction with the network. With the exception of outdated device models, many laptops and computers are equipped with a network adapter during production. This provides the ability to connect to the Internet without purchasing individual element. But, despite the built-in adapter, you can and should purchase additionally external device, expanding data exchange capabilities.

The network card can be integrated into motherboard or external. Regardless of the type, it is assigned a Mac address, through which a computer connected to the network is identified.

Wi-Fi network card

The computer can be connected to the Internet physically using a cable connected to network port PC, or wireless, for which the use of connectors is not required.

The Wi-Fi network card causes the computer to receive a signal from wireless network. It can connect to PCI connector motherboard or USB port of a computer, less often to Ethernet (this type of connection is mainly applicable to older devices). WiFi card, plugged into the USB port of a PC or laptop, is most convenient in terms of mobility; it can be easily connected to another device if necessary.

In addition to the connection method and appearance, there are differences in speed, adapter power. Some cards are only capable of receiving signals, others can also transmit. Adapters equipped with the Soft AP function provide the creation of a Wi-Fi access point.

The range of signal transmission and reception can be carried out as long distances up to hundreds of meters, and limited to a small access zone. As in the case of a router, there is no need to use overly powerful network cards for home use, unless, of course, you are going to distribute Wi-Fi to all your neighbors or take over someone else's signal. In addition, the price will depend on the power of the model, and it is not advisable to overpay for a card that will work in a small area. More robust adapter models are applicable in large areas of offices or enterprises.

How the Wi-Fi adapter works

Access to the Internet via a wireless network is possible thanks to working together network card and router or modem. Wi-Fi technology operates on a specific frequency range. Data exchange with the network is carried out through a router or modem, which communicates with the air via radio waves. For the computer to perceive the radio signal, a network card is used, which reads and converts the signal into an electronic one. All devices equipped with an adapter and located within the range of the router’s transmitter will receive the incoming signal. To digitize data for recognition by the device, the adapter is equipped with a chip and special software that controls the operation of the module. For correct process operation, the necessary drivers must be installed.

Types of adapters

All adapters are divided into two main categories:

External. Such network devices are connected via the port Computer USB or laptop. They are not distinguished by high data transfer speeds, but they pleasantly compensate for this disadvantage with their price, which is why they are the most popular today. In appearance, such adapters look like USB drives. To get started, you need to insert the device into a free port and connect to a wireless connection.

Internal, or built-in. Connect to the PCI connector of the motherboard. To install this type of adapter, you will have to remove the cover of the system unit. The built-in network card is larger than the external one. This type of device has good throughput, causing high speed data transmission. The price of the issue will be significantly higher than that of external adapters.

There is another version of devices that is not widely used - card devices (Card-Bus). This type of adapter connects to a PC Card slot, if your device has one. computer equipment.

Wireless network cards can be connected not only to computers and laptops. A separate niche is occupied by external adapters for TVs. They can be either universal or intended for specific models. If your TV is not equipped with a Wi-Fi receiver, but has a corresponding connector, you can purchase an adapter compatible with it to connect it to a network source.

Network card antennas

A device equipped with an external antenna receives the signal better. Of course, the dimensions of the receiver do not always contribute to comfort, so you can choose an adapter with a removable antenna or with a connector where you can insert it if necessary.

When choosing a device, the antenna power must correspond to the conditions of the location where you want to install the network.

The number of antennas affects the speed of information transmission. Models equipped with removable antennas are very convenient if the router is located far away; if necessary, it is possible to install a more powerful radio wave reception structure. External antennas provide greater range.

Installing and configuring a Wi-Fi adapter

Despite the significant differences in network cards in terms of type and type of connection, they are all configured according to a similar principle.

First, you need to physically connect the adapter to the desired connector on your computer or laptop. Windows will detect the new hardware. Although in system set there will always be compatible programs, but for correct operation It is better to install drivers from the disk that came with the network device. You can also download the necessary software from the manufacturer's official website. Data exchange through the adapter occurs thanks to the driver, which is why it is better to install software that is suitable specifically for your device model.

After installing the Wi-Fi card, a network connection icon will appear, click on it and in the wireless properties network connection find the Internet Protocol TCP/IP. Here you need to enter network parameter settings; you need to find them out by contacting your provider’s technical support and fill them in in the fields. Settings can also be assigned automatically. When you have selected the necessary parameters and access points, all that remains is to assign a Mac address to the card. This task is performed by the network administrator; to do this, call technical support and notify about the adapter change and the need to change the Mac address.

When choosing network device Pay attention not only to functionality, because you will not use all the features of the card, and the price for a wide range of functions will increase several times. Pay attention to some factors, such as the dimensions of your room in which it will be used. Wi-Fi network, distance between the router and computer, wall thickness. The manufacturer also plays a significant role in the reliability of products; it is better to choose a proven one that has proven itself in the quality of its products, of which there are many in the computer equipment market. It is advisable to purchase adapters from the same manufacturer as the router or modem, thereby ensuring better compatibility between the devices.

To begin with, you should know that there are 2 types of network adapters, built-in and discrete (coming as a separate module). The advantage of these is their independence from the motherboard, which allows you not to spend extra money if your computer is repaired.

As some users recommend to buy good adapter, just take famous brand, you shouldn’t even pay attention to the little-known ones. But there are still a few pitfalls that will make the purchase in vain. We'll talk about these below.

What is a network adapter or network controller?

A network adapter is an additional device with which computers organize a high-speed wired channel to the Internet. Like devices, the adapter runs under the control of an OS driver, which allows you to configure functions.

Nowadays, every computer or laptop comes with a built-in adapter, which means you don't have to select these devices separately if you want to choose a computer.

There are also wireless adapters or WiFi adapters specially made to accept wireless signal router or any device broadcasting the Internet. Such devices are connected via USB or PCI. At the same time, they have significant limitations in throughput. By at least this is true for the old one USB interface 2.0 - its limit is 12 Mbit/s. Therefore, you should consider choosing a USB network adapter only as a last resort, when there are no other options left to organize a connection to the network.

For those who do not want to delve into all the nuances and features and study the characteristics of devices, we have prepared ratings of popular network cards based on user reviews.
But we still recommend that you read the article to form own opinion and choose devices based on the parameters you need.

PCI network adapters for desktop computers

USB-ethernet adapters for laptops

Main characteristics of network cards

Network cards are characterized by the following properties:

What types of network cards are there based on connection method?

• 1. PCI
• A common type of network card, standard for most computers. They themselves are reliable and better than built-in cards.
• The abbreviation stands for (PeripheralComponentInterconnect), or in Russian: interconnection of peripheral components.

Connects directly to the motherboard.

Network adapter speed

Internet speed does not fully depend on what is provided to you by your provider. It is important what network adapter you have and how the device is connected to the Internet.

So, if you have a direct Internet connection via twisted pair, then the default settings are 10 Mbit/s.

If you have access to the Internet at high speed, but your computer is old and you have not purchased an external network adapter, then you will notice the standard 10 Mbit/s. In order not to darken your mood and not pay big money for not fast internet, you need in the settings to network connection adjust the speed, but first you will have to buy a network adapter with good bandwidth, since the old built-in one may not be designed for such speeds.

Which network card to choose for a laptop?

Note that it is better not to choose a built-in network card for a laptop if you do not understand it. It is more difficult to choose one for a laptop due to the features of portable connectors. In this case, it’s easier to give away the laptop knowledgeable people who will do everything for you.

If you don’t want to spend money on repairs or look for a good repairman, then use a USB card as an option. As the name implies, connect to a USB connector, connect a twisted pair cable to the card, configure and you're done! But the catch is that then the laptop cannot be connected to WiFI.

Which network card should I choose for my computer?

There are a couple of things to remember when choosing cards:

• Don't buy little-known brands. If you do not care about the manufacturer or characteristics, it is enough to purchase a product from a well-known company, then the chance of making a mistake with the purchase is minimal;
• Check compatibility withPCI bus. Find out what scheme the computer is designed according to. And it is important to know what connection options exist, otherwise the card will turn out to be incompatible with the bus.

Otherwise there are no differences. The main thing is to know that a PCI card has an advantage over the built-in card, due to the fact that if the latter breaks down you will have to tinker, and the fault will cause damage to the motherboard. This will not happen with PCI, it will take the blow and replacement will be easy.

Network card, also known as a network card, network adapter, Ethernet adapter, NIC (English network interface card) is a peripheral device that allows a computer to communicate with other devices on the network. Currently, especially in personal computers, network cards are quite often integrated into motherboards for convenience and to reduce the cost of the entire computer as a whole.

Types

Based on their design, network cards are divided into:

• internal - separate cards inserted into an ISA, PCI or PCI-E slot;

• external, connected via USB or PCMCIA interface, mainly used in laptops;

• * built into the motherboard.

On 10 Mbit network cards for connecting to local network 3 types of connectors are used:

• 8P8C for twisted pair;

• BNC connector for thin coaxial cable;

• 15-pin transceiver AUI connector for thick coaxial cable.

• optical connector (en:10BASE-FL and other 10 Mbit Ethernet standards)

These connectors may be present in different combinations, sometimes even all three at once, but in any this moment only one of them works.

On 100 Mbit boards, either a twisted pair connector (8P8C, erroneously called RJ-45) or an optical connector (SC, ST, MIC) is installed.

One or more information LEDs are installed next to the twisted pair connector, indicating the presence of a connection and the transfer of information.

One of the first mass-produced network cards was the NE1000/NE2000 series from Novell with a BNC connector.

Network adapter settings

When configuring a network adapter card, the following options may be available:

• request line number hardware interrupt IRQ

• channel number direct access to DMA memory (if supported)

• base address I/O

• RAM memory base address (if used)

• support for auto-negotiation duplex/half-duplex standards, speed

• support for tagged VLAN packets (802.1q) with the ability to filter packets of a given VLAN ID

• WOL (Wake-on-LAN) parameters

• Auto-MDI/MDI-X function automatic selection operating mode for direct or cross crimping of twisted pair

Depending on the power and complexity of the network card, it can implement computing functions (mainly counting and generating frame checksums) either in hardware or software (by a network card driver using a central processor).

Server network cards can be supplied with two (or more) network connectors. Some network cards (built into the motherboard) also provide functions firewall(for example, nforce).

Functions and characteristics of network adapters

The network adapter (Network Interface Card (or Controller), NIC) together with its driver implements the second, link layer models open systems at the final node of the network - the computer. More precisely, online operating system the adapter and driver pair performs only the functions of the physical and MAC layers, while the LLC layer is usually implemented by an operating system module that is common to all drivers and network adapters. Actually, this is how it should be in accordance with the IEEE 802 protocol stack model. For example, in Windows NT, the LLC level is implemented in the NDIS module, common to all network adapter drivers, regardless of what technology the driver supports.

The network adapter together with the driver performs two operations: frame transmission and reception. Transmitting a frame from a computer to a cable consists of the following steps (some may be missing, depending on the encoding methods adopted):

• Design of the MAC layer data frame into which the LLC frame is encapsulated (with flags 01111110 discarded). Filling the destination and source addresses, calculating the checksum. Receiving the LLC data frame through the cross-layer interface along with the MAC layer address information. Typically, communication between protocols within a computer occurs through buffers located in RAM. Data to be transmitted to the network is placed in these buffers by protocols upper levels, which extract them from disk memory or from the file cache using the operating system's I/O subsystem.

• Formation of code symbols when using redundant codes of type 4B/5B. Scrambling codes to obtain a more uniform spectrum of signals. This step is not used in all protocols - for example, Ethernet technology 10 Mbit/s does without it.

• Output of signals into the cable in accordance with the accepted linear code - Manchester, NRZ1. MLT-3, etc.

Receiving signals from the cable that encode the bit stream. Receiving a frame from a cable to a computer involves the following steps:

• Isolating signals from noise. This operation can be performed by various specialized chips or DSP signal processors. As a result, a certain bit sequence is formed in the adapter receiver, which with a high degree of probability coincides with the one sent by the transmitter.

• If the data was scrambled before being sent to the cable, it is passed through a descrambler, after which the code symbols sent by the transmitter are restored in the adapter.

• Checking the frame checksum. If it is incorrect, the frame is discarded, and the corresponding error code is sent to the LLC protocol through the inter-layer interface to the top. If check sum is correct, then an LLC frame is extracted from the MAC frame and transmitted through the interlayer interface upward to the LLC protocol. The LLC frame is placed in a RAM buffer.

The distribution of responsibilities between a network adapter and its driver is not defined by standards, so each manufacturer decides this issue independently. Typically, network adapters are divided into adapters for client computers and adapters for servers.

In adapters for client computers, a significant part of the work is shifted to the driver, making the adapter simpler and cheaper. The disadvantage of this approach is the high degree of load on the computer's central processor with routine work on transferring frames from the computer's RAM to the network. The central processor is forced to do this work instead of performing the user's application tasks.

Therefore, adapters intended for servers are usually equipped with own processors, which independently perform most of the work of transferring frames from RAM to the network and in the opposite direction. An example of such an adapter is the SMC EtherPower network adapter with built-in Intel processor i960.

Depending on which protocol the adapter implements, adapters are divided into Ethernet adapters, Token Ring adapters, FDDI adapters, etc. Since the protocol Fast Ethernet allows, through the auto-negotiation procedure, to automatically select the speed of the network adapter depending on the capabilities of the hub, then many Ethernet adapters Today they support two operating speeds and have the prefix 10/100 in their name. Some manufacturers call this property autosensitivity.

The network adapter must be configured before installation in the computer. When configuring an adapter, you typically specify the IRQ number used by the adapter, the DMA channel number (if the adapter supports DMA mode), and the base address of the I/O ports.

If the network adapter, computer hardware, and operating system support the Plug-and-Play standard, then the adapter and its driver are configured automatically. Otherwise, you must first configure the network adapter and then repeat its configuration settings for the driver. In general, the details of the procedure for configuring a network adapter and its driver largely depend on the adapter manufacturer, as well as on the capabilities of the bus for which the adapter is designed.

Classification of network adapters

As an example of adapter classification, we use the 3Com approach. 3Com believes that Ethernet network adapters have gone through three generations of development.

First generation

Adapters first generation were implemented on discrete logic chips, as a result of which they had low reliability. They had buffer memory only for one frame, which led to poor adapter performance, since all frames were transferred from the computer to the network or from the network to the computer sequentially. In addition, the first generation adapter was configured manually using jumpers. Each type of adapter used its own driver, and the interface between the driver and the network operating system was not standardized.

Second generation

In network adapters second generation To improve performance, they began to use the multi-frame buffering method. In this case, the next frame is loaded from the computer memory into the adapter buffer simultaneously with the transfer of the previous frame to the network. In receive mode, after the adapter has fully received one frame, it can begin transmitting this frame from the buffer to the computer memory simultaneously with receiving another frame from the network.

Second-generation network adapters widely use chips with high degree integration, which increases the reliability of adapters. Additionally, the drivers for these adapters are based on standard specifications. Second generation adapters usually come with drivers that work like the NDIS (NDIS Interface Specification) network driver), developed by 3Com and Microsoft and approved by IBM, and in the ODI standard (interface open driver), developed by Novell.

Third generation

In network adapters third generation(3Com includes its adapters of the EtherLink III family) a pipeline frame processing scheme is implemented. It lies in the fact that the processes of receiving a frame from the computer’s RAM and transmitting it to the network are combined in time. Thus, after receiving the first few bytes of the frame, their transmission begins. This significantly (25-55%) increases the productivity of the chain " RAM- adapter - physical channel - adapter - RAM." This scheme is very sensitive to the transmission start threshold, that is, to the number of frame bytes that are loaded into the adapter buffer before transmission to the network begins. The third generation network adapter performs self-tuning of this parameter by analyzing working environment, as well as by the calculation method, without the participation of the network administrator. Bootstrapping provides the best possible performance for a particular combination of the performance of the computer's internal bus, its interrupt system, and its DMA system.

Third generation adapters are based on specialized integrated circuits(ASIC), which increases the performance and reliability of the adapter while reducing its cost. 3Com called its frame pipeline technology Parallel Tasking, and other companies have also implemented similar schemes in their adapters. Increasing the performance of the adapter-memory channel is very important for improving the performance of the network as a whole, since the performance of a complex frame processing route, including, for example, hubs, switches, routers, global channels communications, etc., is always determined by the performance of the slowest element of this route. Therefore, if the network adapter of the server or client computer is slow, no fast switches will be able to increase the speed of the network.

Network adapters produced today can be classified as fourth generation. These adapters necessarily include an ASIC that performs the functions of the MAC level (MAC-PHY), the speed is developed up to 1 Gbit/sec, as well as a large number of high-level functions. Such features may include support for the RMON remote monitoring agent, a frame prioritization scheme, remote control computer, etc. In server versions of adapters, it is almost necessary to have powerful processor, unloading CPU. An example of a fourth generation network adapter is the 3Com Fast EtherLink XL 10/100 adapter.

A device such as a network card allows a laptop or computer to work on the Internet and local network via WiFi, connected via USB or via special cable. The adapter provides a unique address called a MAC that identifies the computer device transmitting packets of information over the network. If you cannot connect with a cable, you can purchase a wireless wifi adapter for your computer equipment.

What is a network card

An element of the hardware configuration of a laptop or computer is called a Network interface controller, which provides the ability to connect to a network, ensuring interaction between devices. Network cards are LAN adapters, NICs, Ethernet adapters or interface cards. Now the Network interface controller is part of the computer package, but previously it was produced separately.

Types of network cards

The Ethernet adapter is designed to connect computer devices to the local network. The Network interface controller, which provides an Internet connection, has the main characteristic of data transfer speed. The NIC uses high-speed interfaces to interface with a computer device. There are 4 design types of computer boards. They all have basic pros and cons.

Types into which microcircuits are divided according to their physical implementation:

• integrated - as the name suggests, built into the motherboard;
• wireless – for bluetooth and WiFi networks;
• internal (separate boards) – connected via PCI, inserted into a PCI-E or ISA slot;
• External network cards for laptops are inexpensive and connect via USB.

Why do you need a network card in a computer?

The main purpose of a network card is to connect computer devices with each other. The Ethernet adapter provides connection to the Internet. If there is no built-in Network interface controller, then USB modems are used, but then the ability to work over the network is reduced. By combining computers, laptops, peripheral devices (scanners, printers, etc.) in one local network, you can exchange data via WiFi within the boundaries of an apartment, house or provider network.

Principle of operation

Some of the functionality of the Network interface controller can be transferred to the central processor or driver. Information is transmitted over the network, which is grouped into data packets. They move from one device to another. There is software and Hardware involved in data transfer. NIC refers to hardware. He is responsible for establishing physical connection between devices. An 8-pin RJ-45 or 15-pin AUI connector is used.

Where is the network card located in the computer?

The network card in the computer is located in the system unit. You can find it by slightly opening the side cover of the system unit. Modern computers do with an Ethernet interface. The built-in NIC is soldered onto the motherboard. If it is not built-in, then it is inserted into one of the free white slots. Operation and data transfer are carried out using an optical fiber cable connected to the adapter connector.

What does a network card look like?

You can see what a network card looks like in online stores that have photos of devices. Externally, the device looks like a flash drive, and internally it looks like a small chip or board located near the connection connector computer network. It is curved on one side. If you don't open sidebar system unit, the location of the Network interface controller looks like a socket for connecting a cable.

How to find out your computer's network card

In the operating room Windows system It will not be difficult to determine the NIC, which is necessary in case of a malfunction or when replacing. Programmers call such adapters consumables, because they tend to break. Network card for PC – an important part system configuration, so you can use it to detect it special programs such as "Everest" and "AIDA64". You can determine the model name yourself by following the path:

1. Start.
2. Control Panel.
3. System and safety.
4. System.
5. Device Manager.
6. Network adapters.

How to check if a network card is working properly

Not working network card for a computer or a faulty Wi-Fi card will not allow you to access the Internet or local network. Serviceability problems may be hidden in system settings(if you have a built-in LAN adapter) or in the density of the cable connection (if external). You can try updating the drivers or testing. The check is carried out in the following way:

1. Computer properties.
2. Device Manager.
3. If there are no exclamation marks next to the name of your adapter, then the equipment is detected normally. Contact your provider.

How to install a network card on a computer

Before you decide to purchase a LAN adapter, you need to make sure that the motherboard does not have its equivalent. The NIC can simply be disabled. To enable it, you need to activate it in basic system input/output (BIOS). If it really doesn’t exist, then buy a NIC at a computer store, and then install and connect the network card:

1. Remove the side cover of the system unit.
2. By selecting free place on the motherboard, remove the plug on the back of the unit.
3. Install the NIC, secure with the mounting screw.
4. Connect the cable to the LAN adapter socket.
5. Turn on your computer. will flash light diodes, notifying about the exchange of information with the network.
6. Set up the connection: install the driver for the network card, register the server DNS (dns).

Price

The adapter will cost up to $5. The set of functions can be selected as desired (adapter with higher speed data transfer, 2 SFP ports). You can order a set of adapters through the catalog in specialized computer hardware stores or buy them in an online store (from 299 rubles). In the table below you will find the price of a network card in Moscow.

Description of network cards for computers and laptops.

Navigation

A network card is a device that allows users to access the Internet, as well as a local network from a computer or laptop. As a rule, modern network adapters have an Ethernet connector to which an Internet cable is connected. This could be a fiber optic cable coming from Wi-Fi devices or the corresponding modem.

In addition, there are also wireless network adapters if the user does not have the ability or desire to run cables across the entire apartment.

In today's review we will discuss in more detail what network cards are, what they are needed for and how they work.

Network cards

As already noted, network cards are essential integral part computer or laptop that allows us to work on the Internet. Network cards may differ from each other in bandwidth, type and other parameters.

What types of network cards are there?

Here we list the main types of network cards:

• Wireless cards are cards that provide an Internet connection when Wi-Fi assistance or Bluetooth devices.
• External - usually used for external connection to laptops via USB port
• Integrated - the most common cards that are built into computers and laptops by default.
• Internal are network cards that can be additionally connected to computers in the corresponding slots on the motherboard.

How do network cards work?

We will not delve too deeply into the operating principle of network cards, since this information will be more understandable only to specialists. Let's explain it more simply. Let's say if you installed fiber optics at home and paid for the Internet, then your provider gives you access to the World Wide Web.

Digital information is transmitted through the fiber optic cable, which is then processed by the network card. There is nothing complicated about it. When you buy a computer or laptop, as a rule, these devices should already have a built-in network card on the motherboard. The driver for it comes along with the drivers for the motherboard. You only need to install the drivers from the disk, which must be given to you by the seller of your computer/laptop.

All this is so simple that most users simply do not realize that there is a network card on their computer. They connect the cable to the network unit of the PC or laptop, pay for the services of their provider and freely use the Internet.

As you might already guess, the computer’s network card is located in its system unit. You just need to open its side cover and pay attention to the lower left corner. You can see this in the screenshot:

How to find a network card on a computer?

If you want to buy a separate internal network card, then you can build it into the corresponding slot in the lower left area of ​​the system unit.

The network card looks like this:

How to find a network card on a computer?

To find out what card you have, you don’t have to go into system unit. Relevant information can be found in a systematic way. To do this, it is not necessary to install third party programs, it is enough to use the means " Windows».

• Go to " Control Panel» via menu « Start»

How can I find out which network card is installed on my computer?

• Next, go to “ System»

How can I find out which network card is installed on my computer?

• Then go to " device Manager»

How can I find out which network card is installed on my computer?

• In the new window, find the item “ Network adapters" and click on it

How can I find out which network card is installed on my computer?

How much does a network card cost?

It's hard to say how much a network card will cost tomorrow, since prices digital devices can constantly change. Different network cards have different prices, let's present some list for today:

How much does a network card cost?

How to choose the right network cards for laptops and computers?

When buying a card, of course, you should pay attention to such parameters as media type, throughput, type of network card. It is important to know the classification. But, if you are not an expert, this information you can find out from the seller (buy digital technology only in famous official stores). The most important thing is to know in advance which network card from which company you should look for.

Let's list what you need to know when choosing a network card:

• The most famous top manufacturers of network cards: “ D-Link», « Tp-link», « Gembird», « Acorp».
• The network card must have connectors or a connector to be able to connect to a local network (be sure to ask the seller about this).
• To connect to computers, the network card must have a connector " PCI"(especially if you have old computer), and for computers – the “ PCMCIA».
• It is also important to consider what maximum speed Your network card will be able to provide Internet access. Standard cards support speeds up to 100 Mb per second.

Video: How to change the network card?