Why type c connector in a laptop? USB Type-C: pros and cons compared to conventional charging


Good afternoon, dear readers! Each laptop case has many different connectors for connecting additional headsets and peripheral devices.

Modern models equipped with an additional port - usb type c, which has a universal purpose. If you don’t know what it is and for what purposes it can be used, we recommend reading our article!

Features of USB Type-C

New technologies have made it possible to create a unique pinout USB Type-C, consisting of 24 pins that perform a special function:

  • 8 pins carry out high-speed data exchange;
  • others transmit a signal to a connected headset;
  • A few more pins are needed to select the power mode.

The new connector has a number of advantages. First of all, experts note the versatility of the port, ensured by full compatibility with any standards, starting from the first generation of USB.

The double-sided connector allows you to connect the cable in any position, and it is absolutely safe, with the exception of damage to the gadget.

Application of the new USB standard

USB Type-C It has compact dimensions and great capabilities. It can be used to recharge the batteries of other devices and provide connected gadgets with power up to 100 W with full energy saving.

The new format connector is used for high-speed information transfer from a flash drive, for connecting headphones, external monitor, mobile phones and others technical devices.

The only nuance that is important to consider in advance is the lack of opportunity direct connection to a gadget equipped with an old-generation USB port, which is due to fundamental differences designs.

Special adapters, available in a wide range in specialized hardware stores, will help correct the situation.

What is the difference between USB Type-C and micro? New standard The connector has a symmetrical shape, more compact dimensions and universal capabilities. It was created according to the innovative specification of the USB standard, which will soon replace all existing options connectors and adapters for more convenient use.

It should also be noted undeniable advantages new version interface and open standard, which does not require licensing fees from manufacturers.

To summarize: USB Type-C is simple and easy to connect with a large resource, high data transfer speed and universal purpose.

Sincerely,

USB Type-C isn't exactly a new concept for Android fans, but there are some who are still in the dark about this technology. In this article, we will find out what USB Type-C is and get some recommendations on how to use it.

USB (Universal Serial Bus) is a cable standard that allows you to transfer data and power between electronic devices. It first appeared in 1998 and has gone through several iterations since then, the most recent being USB Type-C.

Each USB version has data transfer speed and quantity limits electric current through her. The previous USB Type-A and Type-B connectors only have four pins, but USB Type-C has 24, larger and more high speed data transfer.

For example, Micro-USB 2.0, which is currently found on Android Android smartphones, supports 5V (volts)/2A (amps) power and 480Mbps data transfer rates. USB 3.1 Type-C, on the other hand, has 20V/5A power with transfer speeds up to 10Gbps.

What are the advantages of USB Type-C

Type-C has several others useful functions. The USB Type-C connector is reversible, meaning it will work no matter the orientation you plug it in, and has an identical pin on both ends.

What's more, the next generation of HDMI is USB Type-C compatible, meaning there is no need for a separate dongle to send audio/visual data high definition. In the future, laptops will no doubt fully embrace USB Type-C.


What are the disadvantages of USB Type-C

Not all manufacturers are adapting to the new USB standard. Some USB Type-C cables follow the USB 2.0 standard, which is a dangerous practice and may damage your smartphone.

If you need to buy Type-C cable for your phone, you can purchase it from your device manufacturer currently.

One more big problem, is the number of devices that use it. Nektus 5X, good luck finding a cable. Another disadvantage is that quality cables and USB Type-C chargers are expensive.


Beware of cheap USB Type-C cables, they can harm your phone.

Even if your smartphone has USB Type-C, it may not support USB standard 3.1, please check if it is available before purchasing. Always use the cable supplied with USB device Type-C

Mobile device users had a hard time in the 2000s - they were forced to put up with the so-called proprietary. The phones of each manufacturer were equipped with unique charging connectors - as a result, the charger, for example, for Nokia did not work with a Motorola phone. It even got to the point of absurdity - when for two phones from the same manufacturer (Finnish) we had to look for different chargers. The dissatisfaction of users was so strong that the European Parliament was forced to intervene.

Now the situation is completely different: almost all smartphone manufacturers equip their gadgets with ports for chargers same type. The user no longer has to buy a new charger “in addition” to the phone.

USB cables can be used not only to transfer data from a PC to a gadget, but also to charge a mobile device. Smartphones are capable of replenishing battery “reserves” both from an outlet and from a computer, but in the second case, charging will take significantly longer. Traditional USB cable for smartphone with Android or Windows Phone looks like this:

There is a standard plug at one of its ends USB 2.0 Type-A:

This plug plugs into the USB port on your computer or laptop.

At the other end of the wire there is a plug microUSB.

It is, accordingly, inserted into the micro-USB connector on the mobile device.

Micro-USB 2.0 is now a unified connector: you can find it on smartphones and tablets from almost all manufacturers mobile technology(except Apple). An agreement on interface standardization was signed in 2011 by representatives of 13 leading companies in the mobile market.

The choice fell on Micro-USB for a number of reasons:

  • The connector is compact. Its physical dimensions are only 2x7 millimeters - this is about 4 times smaller than USB 2.0 Type-A.
  • The plug is durable– especially when compared with the Nokia thin charger.
  • The connector is capable of providing high data transfer rates. Theoretically, the transfer speed via Micro-USB when using the 2.0 standard can reach 480 Mbit/s. The actual speed is much lower (10-12 Mbit/s in Full Speed), but this rarely causes inconvenience to users.
  • The connector supports the OTG function. We'll tell you more about the benefits this provides later.

Micro-USB could impose competition in the fight for the role of a standard connector Mini-USB. The mini plug looks like this:

This type of USB connector was not suitable as a standard one, and here’s why:

  • The connector is larger in size– albeit not by much. Its size is 3x7 millimeters.
  • The connector is quite fragile– due to the lack of rigid fastenings, it becomes loose very quickly. As a result, transmitting data via cable becomes a real pain for the user.

In the 2000s, a mini-USB connector could be found on smartphones from “second-class” manufacturers - say, Philips And Alcatel. Now mobile gadgets You won’t find one with a mini-connector on the market.

In addition to the USB connectors we mentioned (Micro-USB, Mini-USB, USB Type-A), there are others. For example, micro-USB standard 3.0 can be used to connect to PC hard drives, A USB Type-B(square shape) – for musical instruments (in particular, MIDI keyboards). These connectors are not directly related to mobile technology (except for Galaxy Note 3 c USB 3.0), so we won’t talk about them in more detail.

What types of USB cables are there for smartphones?

Thanks to the inexhaustible imagination of Chinese handicrafts, mobile technology users can buy cables of completely different formations. For example, in the era of proprietaryism, the following “monster” was incredibly popular:

Yes, this charger fits all the main connectors!

Similar “multi-tools” are still on sale, but they have fewer plugs. Here is a 4-in-1 charger, which can be ordered for less than 200 rubles:

This charger is equipped with all modern plugs - Lightning, 30Pin (both for iPhone), microUSB, USB 3.0. Definitely a “must-have” for the user!

There are other interesting options. Here is the cable from OATSBASF For those who hate cables:

This cable allows you to charge two mobile devices from your computer. simultaneously(for example, the 5th iPhone and Android) and has a very tempting price - just over 100 rubles.

In domestic stores and showrooms, the user, of course, will not find such an abundance of different cables as on the pages of catalogs GearBest And AliExpress. In addition, data equipment at retail costs significantly more. For these two reasons, users are recommended to order USB cables from China.

What is the OTG standard?

Surely many have seen such a cable and wondered what it is for:

This is a cable OTG; at one end there is a plug micro-USB, on the second – connector USB 2.0, "Mother". Using such a cable, you can connect a USB flash drive to a smartphone or tablet, but only if the mobile device itself supports the standard OTG.

OTG(short for On-The-Go) is a function designed to fast connection 2 USB devices with each other, without the mediation of a computer. Connect by OTG you can not only flash drive (although this, of course, is the most common case), but also, for example, computer mouse, keyboard, external hard drive, gaming wheel, joystick. You can even connect your smartphone to a printer or MFP to print out a photo taken with the gadget’s camera.

Cables OTG for iPhone have also already appeared, but download it to an Apple device (without jailbreak) from external media Only photos and videos are obtained - and then only when the root folders on the flash drive and the photos themselves have the “correct” names.

A complete list of smartphones that support the function OTG, no - simply because almost everyone can boast of having this standard modern gadgets and the list would be huge. However, a buyer who intends to connect a mouse or flash drive to the device should ask the store consultant about support OTG before giving away money - “just in case.”

USB Type-C: what are the advantages?

Transition from micro-USB na – this new trend mobile electronics market! Manufacturers are actively mastering technology and equipping their flagship models improved connectors for charging and data transfer. USB Type-C I waited “in the shadows” for a long time: the connector was created back in 2013, but only in 2016 did market leaders pay attention to it.

looks USB Type-C So:

What are the advantages? Type-C in front of everyone familiar micro-USB?

  • High data transfer speed. Bandwidth Type-C equals 10 Gb/sec (!). But that's just bandwidth.: in reality, only owners of smartphones with the standard can count on such speed USB 3.1- For example, Nexus 6P And 5X. If the gadget uses the standard USB 3.0, the speed will be around 5 Gb/sec; at USB 2.0 Data transfer will be significantly slower.
  • Fast charging. The duration of the smartphone charging procedure depends on the potential amount of watts supplied by the connector. USB standard 2.0 capable of serving everything 2.5 W– that’s why charging lasts for hours. Connector USB Type-C provides 100 W– that is, 40 times (!) more. It is curious that current transmission can occur in both directions - both to the host and from it.
  • Connector symmetry. If the connector micro-USB there is up and down, then the connector Type-C symmetrical Which side you insert it into the connector does not matter. From this point of view, technology USB Type-C similar to Lightning from Apple.

Dignity Type-C The size of the connector is also small - only 8.4 × 2.6 millimeters. According to this technology criterion micro-USB And USB Type-C similar.

U USB Type-C There are also disadvantages, one of which is more than significant. Due to the unregulated operation of the connector, charging can easily “fry” the mobile device. This probability is not purely theoretical - fires have occurred in practice. It is for this reason that the proliferation of non-original, “makeshift” cables and chargers USB Type-C Type-C and decide to abandon the standard connector. At the same time, Ravencraft admits that, perhaps, complete replacement USB-A will never happen.

U USB port Type-C has at least one undeniable and obvious advantage in front of the port micro USB- you can insert the connector into it from either side (like Lightning). But USB Type-C also has disadvantages, we will talk about them today.

1. USB Type-C does not support fast charging

Currently, no smartphone with a USB Type-C cable is compatible with technologies that support fast charging (for example, Qualcomm Quick Charge 2.0). Perhaps it will appear in the future, but definitely not on those smartphones that have already been released.

2. USB Type-C does not guarantee high data transfer speeds


USB Type-C is only a connector form factor, not a data exchange standard. The USB Type-C cable itself can comply with different standards - USB 2.0, 3.0 and 3.1. Even if the cable supports USB 3.1, the data transfer speed through it will be limited by the port of the smartphone or computer. In theory, data can be transferred via USB 3.1 at speeds of up to 10 gigabits per second, but in reality such speeds will most likely be unattainable even under ideal conditions.

3. USB Type-C is not widely used

Surely you have often asked your friends for a charger or cable to charge your dead smartphone. In the case of USB Type-C, this will not work - it’s unlikely that anyone will have such a cable. You can ask any passerby for a micro USB cable. They may refuse, but almost everyone has it..

4. USB Type-C is expensive

The worst thing is if the cable gets lost or becomes unusable - a micro USB cord is very cheap in computer stores, and USB Type-C is not available in all retail outlets, and you will have to pay a lot for it more money. In addition, there is no guarantee that the new cable will be of the same quality as the one that came with the smartphone; there is a high risk of running into a fake.

5. USB Type-C does not support common accessories

If you have already purchased for your smartphone various accessories, like portable chargers, OTG adapters, flash drives, speakers, etc., be prepared that they will be incompatible with USB Type-C. Finding accessories that support this standard is currently quite difficult.

All this does not mean that the USB Type-C standard is bad, it’s just that its time has not come yet. In addition, many compatibility issues can be resolved by purchasing USB adapter Type-C -> micro USB.

Recent changes and improvements in USB technology are expanding the choice of interfaces for users. Initially, the USB Implementers Forum renamed USB interface 3.0 to USB 3.1 Gen 1. At the same time technical specifications interface remained the same. The forum then introduced USB 3.1 Gen 2 and new type physical connector, which is called USB Type C. We decided to shed light on the situation around these standards and connectors.

USB 3.1 technology

Currently, USB 3.1 Gen 1 (formerly USB 3.0) technology is supported as a standard by the latest operating systems MacOS, Linux and Windows. The interface provides maximum theoretical throughput 5 Gbps and current up to 3.4 Gbps and up to 900 mA current for devices. Unlike USB 2.0, version 3.1 operates in full duplex mode, in other words, simultaneous sending and receiving of data is possible.

USB 3.1 Gen 2 offers users twice the throughput of Gen 1: 10 Gbps. USB 3.1 Gen 2 is not a standard for Intel or AMD, but may be supported third party drivers and controllers. And although Gen 2 received minor changes protocol, it supports backwards compatible with Gen 1.

Scope of application of USB 3.1

So, USB 3.1 technology provides the user with significantly increased performance compared to USB 2.0. When using removable drives will be provided with more fast transfer data: large video files and images. USB 3.1 will provide support high resolutions and frame rates for cameras used in machine vision systems on production lines. Accordingly, PTZ cameras used both in video surveillance systems and in video conferencing systems without using a hardware codec can support resolutions of 1080p60 and higher. This undoubtedly improves the quality and reduces the cost of video conferencing systems, and also allows users to connect their own devices to Skype and WebEx.

USB 3.1 pinout

Like USB 3.0, USB 3.1 received additional contacts to support SuperSpeed. The D+ and D- pins remain the same, including (power) and (ground). To service the SuperSpeed ​​tire, two additional tires have been added twisted pairs, which provide bidirectional SuperSpeed ​​data transmission: StdA_SSRX+ and StdA_SSRX- (reception) and SSTX+ and StdA_SSTX (transmission).

USB Type C

The new type of physical connector brings significant qualitative changes that set it apart from USB 3.1 Gen 1 and Gen 2. Type C supports data transfer speeds of up to 40 Gbps (Thunderbolt 3 alternative mode) and current power of up to 100 Watts. Many have already appreciated the shape of the connector: it can be inserted from either side. Both the connector and connector turned out to be quite compact and much more durable than alternatives, for example, micro USB. The cables are marked with an electronic chip for correct use and preventing situations where it is not compatible or transfers too much power to a device that does not support it. Type C is backward compatible with USB 2.0, 3.1 Gen 1 and 3.1 Gen 2.

Type C can both consume and provide power. The same port can be used both to connect a flash drive and to charge a laptop. In addition, charging devices such as smartphones and tablets from Type C is faster.

Alternate Modes

USB Type C can work in so-called alternative modes, which allow you to transmit through the connector and cables not only USB data. In this case, other physical protocols are used, and with each of them, current transmission with a power of up to 100 watts is ensured.

  • DisplayPort Alternate Mode– support for video transmission with resolutions up to 4Kp60 4:4:4 with DisplayPort version 1.3. Simultaneous transfer of USB 3.1 Gen 2 and USB 2.0.
  • Mobil High-Definition Link (MHL) Alternate Mode— support for video transmission with resolutions up to 4Kp60 (1 line) or up to 8Kp60 (4 lines) using MHL 1.0, support for USB 2.0 and 3.1 depending on the configuration.
  • Thunderbolt 3 Alternate Mode– Supports up to two displays with resolutions up to 4Kp60, PCIe 3.0, DisplayPort, USB 2.0 and 3.1 transmission, depending on configuration.
  • HDMI Alternate Mode– support for HDMI 1.4b specification (4Kp30, 4Kp60 4:2:0), no support for USB 3.1 simultaneous transfer in any configuration.

Trends around USB-C

The features and advantages of USB Type C will certainly be reflected in the increased presence of the connector in mobile devices and laptops. Among devices with this type of connector, flash drives, various docking stations, monitors and adapters for outdated interfaces are expected. By 2019, up to two billion different devices are expected to be shipped.


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