VGA connectors. VGA connector: pinout, purpose


IN modern world it is no longer possible to imagine life without computer technology. Every person has a smartphone in their hands, almost everyone has a TV at home, as well as a computer. All of them improve human life to one degree or another. But for them to work correctly they require at least basic knowledge computer technology, in particular, knowledge of computer interfaces is important.

One of the most important and required interfaces for desktop or, as they are also called, personal computers is a vga connector, since most current monitors (TVs) are connected through it, be it old monitors or modern monitors with Full HD resolution. It is important to remember this, since the most modern monitors (TVs) with resolutions higher than 1920x1080 are already abandoning this connector. This one video interface we'll look at it today.

VGA stands for "video graphics array". The first iteration of the VGA connector appeared back in 1987. Then she really couldn’t transmit the picture and transmitted no more than 256 colors. But modern version has much wider possibilities. It is usually called a 15-pin vga connector or a 15-pin d-sub connector.

It is worth mentioning where the vga connector is found to fully understand why it is needed. Firstly, these are monitors. In vga monitors so far is the most important connector. Secondly, on televisions. On TVs, vga is the same connector that helps you connect various types of players, receivers, set-top boxes, and so on. In addition to various types of monitors, VGA is present on almost all equipment that needs to transmit a video signal.

Pinout

After a long introduction Let's move on to the description of the pinout diagram vga connector. As mentioned earlier, it consists of 15 contacts. We will study in detail each contact and what it is responsible for. Channels are counted from right to left, from top to bottom.

  • The first contact is the red video channel. It is responsible for transmitting red spectrum video.
  • The second contact is the green video channel. This channel is responsible for transmitting green spectrum video.
  • The third contact is the blue video channel. This channel is responsible for transmitting blue spectrum video.
  • The fourth pin is the second bit of the monitor ID. To communicate with the monitor, it is assigned a three-digit numeric value. This contact is responsible for the second digit in this number.
  • The fifth contact is common ground. Serves to create the correct circuit of the electrical circuit.
  • The sixth pin is the ground of the red channel.
  • The seventh contact is the ground of the green channel.
  • The eighth pin is the ground of the blue channel. All three last contact also serve to create the correct contour of the electrical circuit.
  • The ninth contact is power. Power is required for E-DDC to operate. E-DDC is a system designed to communicate between a computer and a monitor. More precisely, to determine the model, technical characteristics, the name of the monitor being used.
  • The tenth contact is another ground.
  • The eleventh pin is the zero bit of monitor identification. The zero digit of the three-digit monitor ID.
  • The twelfth pin is the first bit of the monitor ID. The first digit of the three-digit monitor ID.
  • The thirteenth contact is horizontal synchronization. Horizontal synchronization serves to maintain the integrity of the transmitted image in the horizontal plane.
  • The fourteenth pin is vertical sync. The same thing, but here the integrity is preserved in the vertical plane.
  • And the last, fifteenth pin is the third bit of the monitor identifier. The third digit of the number used to identify the monitor.

Sometimes when talking about the pinout of various connectors, you can also hear a glimpse of the monitor's wiring. But don't worry pinout and connector wiring are the same thing.

Characteristics

Let's now move on to d-sub connector specifications:

EDDC

As mentioned above, the d-sub cable uses a certain technology called EDDC, which stands for Enhanced display data channel. This technology is designed for two-way communication computer, or more precisely, a video adapter with a monitor. In the description of the d-sub pinout it was mentioned binary number. This very number is the key to internal memory monitor and it is transmitted to the computer so that it can be read necessary information from the monitor's internal memory. And communication itself is necessary for more precise adjustment of the monitor for better performance and picture quality.




Also important information is that d-sub is analog technology, so it carries an analog signal. It follows from this that the quality of such a signal directly depends on the quality of the cable itself and wiring. The quality of the cable depends on the thickness of the cable, the quality of the insulation, the length of the cable and the quality of the conductor used. From this we can conclude that truly high-quality d-sub cables cannot be cheap, because they are expensive to manufacture.

In conclusion, the fifteen-pin d-sub is a common connector carrying an analog signal, found in almost all current computer technology. Its specifications are acceptable for most of the audience. The biggest nuance is that this technology is already quite old and has practically outlived its usefulness. It is being replaced by new connectors that conduct digital signal, instead of an analog signal.

The term DVI-D VGA most often refers to small devices (adapters) with which old monitors with analog connectors are connected to computers transmitting a digital signal.

The peculiarity of such a connection is that it is not entirely 100% compatible, due to which it is far from Not every such adapter actually works. And although these devices cost not too expensive- on average, about $2-5 - in most cases it is better to give preference to another device called a signal converter.

Features of DVI-D and VGA connectors

A DVI port is available on those computers and laptops that support a special technology – digital visual interface or “digital interface”. It is used to transmit video images to peripheral data output devices - from televisions to.

Using technology allows you to receive a signal from best quality, which cannot be transmitted using the currently outdated interface. For comparison, maximum resolution, supported by Video Graphics Array technology, is only 1280x1024 pixels. For DVI-D similar the indicator is 2560x1600 pixels.

New technology DVI is already used practically for everyone modern monitors and output devices. However, the transition to a newer and more advanced method of data transmission has created a certain problem for users of those monitors that only have a VGA connector.

After all, back in the 2000s, most of them were even quite large screens with a diagonal of 22–24 inches were equipped only with old ports. And you can connect them to modern PCs only if you use a special adapter for this.

There are 3 types of DVI connectors:

    DVI-A interface providing only analog data transmission;

    for data transmission in both digital and analogue formats – DVI-I;

    only for digital image– DVI-D.

Due to the fact that computers transmit images to digital format, most modern video cards have only one type of connector - DVI-D. Outdated ones, equipped with DVI-I interfaces, can be connected using a special cable.

It is not always possible to provide the same connection to a VGA screen that has a lower resolution (analog and no longer even supports the FullHD format) using simple cables or adapters.

Compatibility issues

If you compare the signals that come from the DVI-D port, you can conclude that they are different. And in order to correctly transmit information to digital form For an analog monitor, you can use adapters from one interface to another - or signal converters with the same ports. When considering purchasing a regular DVI-D/VGA adapter, you should be aware of compatibility issues, which most users will have to deal with.

Main advantage this small devicelies in its price. However, due to the absence of contacts C1–C4 (4 rectangular holes on the DVI -D connector, there is no possibility of analog data transmission. And, if, for example, such data can still be sent from a DVI-I or DVI-A port, the likelihood of The image on the monitor from a digital interface will be minimal.

The low cost of adapters leads to the fact that many users buy them for their old monitors that need to be connected to modern maps. Sometimes this method works. But, due to the fact that the “pinout” (or location of connectors) of the old and new interfaces is different, there may not be a signal.

The image does not appear on the screen due to the inability to convert the signal using conventional wiring. If the picture does appear, most likely the video card still has a DVI-I or DVI-A interface. That is, it also supports analog data transmission.

Solution of the problem

The incompatibility problem is quite serious - but completely solvable. Due to the fact that data can not only be transmitted, but also converted, specialists have long invented another device called a DVI-D to VGA converter or converter.

In appearance, it may indeed resemble a regular adapter, but it is equipped with an additional module that increases the size of the device.

Rice. 6. DVI-D VGA converter.

The task of the device is to convert a digital signal to analog. And, due to its more complex design, such a converter costs several times more. on the other hand, the question arises: why are they sold in online stores? DVI-D adapters VGA?

It’s easy to answer - the reason is the incompetence of some sellers. Or, perhaps, in the desire to sell more of a product that does not have the functions for which it is bought. In fact, on sites where reliable information about adapters and cables is provided, you can see other parameters in the description - the transition is carried out not from DVI-D, but from DVI -I to VGA.

Converters

There are a number of models of data converters from DVI-D to VGA. In most cases, they require separate power, since the device is not a simple adapter, but a full-fledged device with a board located inside. This feature makes the converter more expensive - but save in in this case doesn't make sense.

The capabilities of a digital to analog signal converter include transferring information from a modern video card to outdated monitors. Or the same far from new (or simply inexpensive) TVs, which can also be used to display information from a PC or laptop.

You may also need a converter when connecting - although most of them have already had one for a long time, which is also digital and compatible with any modern video card. Such adapters are not needed for such a device.

Signal conversion features

Among the converters available on the market you can find devices with the following characteristics:

    support for connecting DVI-D source to VGA displays with maximum size pictures up to 1920x1200 pixels and minimum 800x600 pixels;

    the converter input has 21 pins, the output has 15 pins;

    maximum frequency – 60 Hz;

    converter cable length – from a few centimeters to 1.5–1.8 m;

    cost – from $6.

You should know: The converter is unidirectional. That is capable of converting digital signal to analog– but not vice versa. If you need to connect a VGA video card to a DVI-D monitor, you will need another reverse converter. Although it will not be of very high quality.

In addition, when buying a converter, you should take into account its incompatibility with the DVI-I and DVI-A interfaces. Moreover, most converters require separate power supply and audio output using an additional cable. Although in cases where the cable connecting the computer and the output device does not exceed 1–1.5 m in length, it is not necessary to connect it to the network.

For correct operation It is desirable to support the same update rate provided by the converter. It is also recommended to use displays or TVs with a diagonal of no more than 40 inches - otherwise stripes may appear on the image.

Important: If you have to convert the signal not only from DVI-D to VGA, but also to other formats, It's worth purchasing a multifunctional converter, supporting several types of interfaces.

Rice. 10. Multifunctional converter.

Most liquid crystal and plasma TVs have a VGA connector, or as it is also called, D-sub. In addition, it is used to connect the system unit and the monitor. The abbreviation VGA comes from the name of computer video adapters. The VGA connector is designed by Canon. At first it was the smallest compared to other similar connectors.

general information

VGA connector: pinout

So, we present to your attention the wiring of such a connector, and at the same time we will decipher the purpose of each pin:

1. Red channel - 75 Ohm, 0.7V.

2. Green channel - 75 Ohm, 0.7V.

3. Blue channel -75 Ohm, 0.7V.

4. Second identification bit.

5. Common wire.

6. "Ground" of the red channel.

7. "Earth" of the green channel.

8. "Earth" of the blue channel.

10. "Ground" synchronization.

11. Zero identification bit.

12. Single identification bit, or DDC data.

13. Composite or line synchronization.

14. Frame synchronization.

15. DDC clock, or third identification bit.

Conclusion

It should be noted that audio information is not transmitted through the mentioned type of connection. This may cause additional difficulties in synchronizing sound and video. After all, TVs usually do not have additional audio inputs compatible with the VGA connector. The easiest way to synchronize two signals is to use a separate

For 10 years now, computers and laptops have been equipped with not one, but two or three types of connectors at the same time. The ports differ in both size and appearance. What type of monitor connection do you prefer? The article also discusses the practical usefulness simultaneous connection two or even three monitors.

Common but old types of connectors

VGA (Video Graphics Array): an outdated classic

The blue trapezoidal interface dominated the computer field for 25-30 years. It worked great on older CRT displays due to its analog nature. But flat LCD screens appeared - digital devices, then resolutions began to increase and the good old VGA began to lose ground.

Today it is built into video cards less and less often, but many devices (household players, projectors, TVs) are still equipped with support for the hopelessly outdated VGA. Probably, for several more years, the “old man” will remain a not very desirable, but widespread de facto standard - if you have any doubts about which cable you can use to connect the monitor in the next office, then take VGA.

DVI-I (Digital Visual Interface): another long-lived video interface

Actually, there are several of them: DVI-A, -D and -I, plus their varieties. But when we talk about the most common DVI standard, it means analog-to-digital DVI-I Dual Channel - this is the specification built into most PCs.

At one time, DVI came to replace VGA, which was rapidly becoming obsolete in the mid-2000s. The ability to transmit both analog and digital signals, support for large (in that era) resolutions and high frequencies, lack of inexpensive competitors: DVI continues to serve as the standard today. But it is unlikely that his active “life” will continue for more than another 3-4 years.

Resolutions higher than the minimum comfortable for today FullHD are increasingly found even in inexpensive computer systems. With the growth of megapixels, the once serious capabilities of DVI are ending. Without going into technical details, we note that the peak capabilities of DVI will not allow displaying an image with a resolution of over 2560 x 1600 at an acceptable frequency (above 60 Hz).

Modern video interfaces

HDMI (High Definition Multimedia Interface) – the king of multimedia

The abbreviation “HD-IM-AI”, once awkward for Russian ears, is increasingly entering our lives. Why has HDMI become so popular? It's simple:

  • arbitrarily long wires (okay, to be honest - up to 25-30 meters);
  • transmission of sound (even multi-channel!) along with video - goodbye to the need to buy separate speakers for TV;
  • convenient small connectors;
  • support everywhere - players, zombie boxes, projectors, DVRs, gaming consoles– it’s difficult to immediately remember any technology that didn’t have an HDMI connector;
  • ultra-high resolutions;
  • 3D picture. And yes, it is possible along with ultra-high resolutions (HDMI 4b and 2.0 versions).

The prospects for HDMI are the most promising - development continues; in 2013, version 2.0 specifications were adopted: this standard is compatible with old wire connectors, but supports increasingly impressive resolutions and other “tasty” features.

DisplayPort (DP): A Connector That's Just Becoming Ubiquitous

And DisplayPort is stunningly beautiful in appearance...

For many years, computers were rarely equipped with this direct competitor to HDMI. And - despite the fact that DisplayPort was good for everyone: and support for very high resolutions along with a stereo signal; and audio transmission; and an impressive length of wire. It is even more profitable for manufacturers than licensed HDMI: there is no need to pay the developers of the standard the 15-25 cents that HDMI owners are entitled to.

The DP connector simply had bad luck in its early years. However, computers are increasingly equipped with a pair of Display Ports modern standard version 1.4. And on its basis, another popular standard with enormous prospects was “born”: the “little brother” of the Display Port...

Mini DP (Mini DisplayPort)

Together with HDMI and the completely outdated VGA, the Mini DisplayPort connector is built into almost every computer and laptop. It has all the advantages of its “big brother”, plus its miniature size – an ideal solution for ever-thinner laptops, ultrabooks, and even smartphones and tablets.

Transmitting an audio signal so as not to buy separate speakers for the monitor? Please - how many channels do you need? Stereoscopy even in 4K? Yes, even though the interface will have to flex all its electronic muscles. Compatibility? There are a wide variety of adapters on the market, for almost any other connector. Future? The Mini DP standard is alive and well.

Thunderbolt: exotic monitor connection options

There are others like that. For a year now, Apple, together with Intel developers, have been promoting the fast, universal, but insanely expensive Thunderbolt interface.

Why do monitors also need Thunderbolt? The question remains for years without a clear answer.

In practice, monitors with its support are not so common, and there are serious doubts about the justification of Thunderbolt for video signal transmission. Is it the fashion for everything “Apple”...

Unfortunately, beyond the scope of this article there remains the most interesting opportunity to connect screens to a computer (and even supply power to them!) using the USB 3.0 interface (or, even more interesting, 3.1). This technology has many prospects, and there are also advantages. However, this is a topic for a separate review – and for the near future!

How to connect a new monitor to an old computer?

An “old computer” most often means a PC with a single port – VGA or DVI. If new monitor(or TV) categorically do not want to be friends with such a port, then you should purchase a relatively inexpensive adapter - from VGA to HDMI, from Mini DP to DVI, etc. – there are many options.

When using adapters, some inconveniences are possible (for example, there is no way to transmit sound or images with a particularly high resolution via VGA), but such a scheme will work properly and reliably.

Wireless video signal (WiDi)!

There are such interfaces, even several. Intel Wireless Display (aka WiDi, or “Wi-Dai,” no matter how strange it may sound to a Russian-speaking reader): an adapter that costs about $30 connects to the USB connector of a TV or monitor (if the technology is supported by the manufacturer).

The signal is sent via Wi-Fi, and a video image is displayed on the screen. But this is only in theory, and in practice, significant obstacles are the distance and the presence of walls between the receiver and transmitter. The technology is interesting, it has prospects - but nothing more for now.

Another wireless video interface is AirPlay from Apple. The essence and practical use the same as Intel's WiDI. A little expensive, not very reliable, far from practical.

A more interesting solution, but still not widespread, is Wireless Home Digital Interface (WHDi). It's not exactly Wi-Fi, although it's very similar. wireless technology. Key Feature– a proprietary method of protection against interference, delay and distortion.

Connecting multiple monitors at the same time

With the task of connecting the main or additional screen Even a novice user can handle it: connecting the monitor to a PC or laptop is no more difficult than a flash drive. It is only possible to connect a monitor to a computer the right way: the connector simply will not fit into a connector that is not intended for it.

An excellent feature of modern video cards and operating systems– the ability to connect several monitors to one signal source (PC, laptop). The practical benefits are enormous, and in two different versions.

1. Image clone mode

The main computer screen works in normal mode. But at the same time, the image is completely duplicated on a large-diagonal TV and/or projector. You just need to connect the video cable and big screen, and to the projector. Sound is transmitted along with the image if you use modern connectors (HDMI, Mini DP).

2. Multi-screen mode

The resolution of monitors is constantly growing - but there will always be tasks for which I would like to have a wider screen. Calculations in large Excel spreadsheet, or working with a couple of browsers at once; design tasks and video editing. Even typing is more convenient when there is also an additional display next to the main one. “Gap” - the frames of the screens in practice interfere no more than the frames of glasses - after a few minutes you simply don’t notice them. Gamers also like to use several monitors at once - immersion in the gameplay with such a scheme is much more exciting. By the way, some AMD video cards support up to 6 monitors simultaneously (Eyefinity technology made a lot of noise in the IT community 5 years ago).

Picture: this is how you can call up the settings for connecting a second or third monitor: click on “Graphics Settings” from Intel or Nvidia.

How to connect a 2nd monitor to a computer? Insert the cable connector - most likely, the image will be instantly “picked up” by the second screen. If this does not happen, or additional settings / another mode are required - minute work in graphics driver video cards. To get to this program, just click right click by the Intel, Nvidia or AMD video driver icon - depending on which video adapter is installed in the PC, and select “Settings”. The video adapter icon is always present in the Control Panel, and in almost all cases - in the Windows tray, around the clock.

Good day.

One of the most common questions when connecting a monitor to a computer is understanding the variety of connectors, making right choice cable to make everything work (especially difficult if the monitor has several interfaces at once). Whether it was before, there is one VGA everywhere: everything is simple and clear. But over time (after the advent of high-resolution monitors), its capabilities became insufficient, and new interfaces began to come out...

In general, now you can most often find DVI, Display Port or HDMI interfaces on monitors. Moreover, they are all, in turn, divided into several more types (so to speak). The situation is even more complicated if the monitor has some interfaces and the PC has completely different ones. No wonder you get confused...

In this article I will try to sort out this whole tangle and answer the typical and most FAQ on this issue.

And so, closer to the point...

HDMI

One of the most popular and popular interfaces today. Found on the vast majority of laptops and computers (can also often be found on tablets). Suitable for connecting monitors, TV (and TV set-top boxes), projectors and other video equipment.

Peculiarities:

  1. transmits both audio and video signals (simultaneously). In this regard, this is a big plus for the interface: no extra cables are needed to transmit the audio signal;
  2. Full support for FullHD (1920x1080) resolution, with 3D effects. Maximum supported resolution up to 3840×2160 (4K);
  3. the cable length can reach 10 meters, which is sufficient in most cases (with the use of repeater amplifiers - the cable length can be increased to 30 meters!);
  4. It has throughput from 4.9 (HDMI 1.0) to 48 (HDMI 2.1) Gbit/s;
  5. adapters from HDMI to DVI and vice versa are available for sale (very important for compatibility of old and new devices with each other);
  6. HDMI has several types of connectors: HDMI (Type A), mini-HDMI (Type C), micro-HDMI (Type D) (see photo above). On laptops/PCs, the classic size type is most often used - HDMI (Type A). Micro and Mini meet in portable equipment(in tablets, for example).

If you have on your monitor and system unit(laptop) has HDMI - then the whole connection will boil down to buying an “HDMI-HDMI” cable (which can be bought at any computer store).

Please note that before connecting via HDMI, be sure to turn off both devices (PC and monitor). , if this is not done.

Display Port

A new interface that is quickly gaining popularity (a competitor to HDMI). Allows you to connect several monitors at once, supports 4K resolution, 3D image. There are two standard sizes: classic and Mini Display Port (on regular laptops and monitors the first option is found, see photo above).

Peculiarities:

  1. both audio and video signals are transmitted simultaneously;
  2. The maximum length of the Display Port cable can reach 15 meters;
  3. data transfer speed up to 21.6 Gbit/s;
  4. allows you to get a resolution of up to 3840 x 2400 at 60 Hz; or 2560 x 1600 pixels at 165 Hz; or you can connect two monitors at once with a resolution of 2560 x 1600 pixels and a frequency of 60 Hz.
  5. Please note that in addition to the classic Display Port, there is another form factor: Mini Display Port.
  6. By the way, the size of the Mini Display Port connector is about 10 times smaller than that of DVI connector (about him later in the article)!
  7. the interface has a small “latch” that securely fixes the cable when connected to the port.

DVI

This interface is almost 20 years old and still enjoys wide popularity (it was released in 1999). At one time, I seriously improved the quality of the image on the screen.

The maximum resolution is 1920 x 1080 pixels (however, some expensive video cards can transmit data in dual link mode and the resolution can reach 2560 x 1600 pixels).

Peculiarities:

  1. Only the image is transmitted through the DVI connector (the audio signal will have to be transmitted via other channels);
  2. resolution up to 1920×1200 pixels with cable length up to 10.5 m; resolution 1280×1024 pixels with cable length up to 18 m; in dual-channel data transfer mode - up to 2560 x 1600 pixels.
  3. There are three types of DVI: DVI-A Single Link - analog transmission; DVI-I - analog and digital transmission; DVI-D - digital transmission.
  4. Various connectors and their configuration (DVI-A, DVI-D, DVI-I) are compatible with each other.
  5. Please note that this standard is more likely to experience interference: for example, if there are other devices near the cable that emit an electromagnetic signal (telephone, printer, etc.). This can also happen due to poor cable shielding;
  6. There are many adapters on sale from VGA to DVI and reverse;
  7. The DVI connector is quite large, ~10 times larger than the Mini Display Port (Apple even released Mini DVI, but it was not very popular...).

VGA (D-Sub)

This standard was developed back in 1987. Despite this, it is still very popular and is used mainly for simple projectors, video set-top boxes, and small office monitors (where high resolution and very high-quality images are not required). Officially, resolutions of up to 1280×1024 pixels are supported, and therefore many are “prophesying” an imminent eclipse for this interface...

My personal opinion: many people “bury” this interface early, because thanks to hundreds of millions of devices that have been released over these 30 years, VGA will “outlive” some modern ones.

Peculiarities:

  1. transmits only video signal (for audio it is necessary to use other channels);
  2. maximum resolution up to 1280×1024 pixels, with a frame refresh rate of 75 Hz (in some cases it is possible to work with higher resolution, but this is not officially guaranteed, and image quality may deteriorate);
  3. there are many VGA adapters to HDMI, VGA to Display Port, VGA to DVI and reverse;
  4. Despite its “moral” obsolescence, the interface is supported by a variety of audio and video equipment, and is still in wide demand.

Popular questions about connecting and choosing a cable

Option 1: The monitor and computer have the same interface (HDMI or Display Port)

Perhaps this is the most favorable option. In general, it is enough to buy a standard HDMI cable(for example), connect devices using it and turn them on. No additional settings not required: the image is immediately displayed on the monitor.

Important!

When "hot" HDMI connection The port may burn out! How to avoid this and what to do (if the monitor/TV via HDMI does not work) is described in this manual:

Option 2: devices have different interfaces. For example, on a laptop HDMI, on a VGA monitor.

This option is more complicated... In addition to the cable, you need to buy a special adapter (sometimes the cost of such adapters reaches 30% of the new monitor!). It is better to buy both the cable and the adapter as a set (from the same manufacturer).

Also keep in mind that old PCs/laptops with VGA|DVI connectors may simply not produce a picture high resolution, if you want to connect a large monitor/TV to them.

There are quite a lot of adapters on sale now that provide interaction different interfaces among themselves (VGA, Display Port, HDMI, DVI).

What if I take different versions of the HDMI connector?

If you mean form factor - i.e. Micro and classic size connectors, you need a special one to connect them. cable (possibly an adapter).

If we're talking about about connecting a video card that supports the HDMI 1.4 standard (with 3D), say, to a monitor with HDMI 1.2 - then the devices will work according to the HDMI 1.2 standard (without 3D support).

Does cable length matter? Which interface should you prefer?

Yes, the cable length is great importance. The longer the cable, the weaker signal, the greater the likelihood of various interferences, etc. Let's say, in the general case, it is undesirable for its length to exceed 1.5÷3 m.

Of course, the length is also affected by the interface you choose. Let's say HDMI interface allows you to use a cable up to 10 meters long (and with an amplifier up to 25-30!). While the same VGA cable, longer than 3 m, can significantly “spoil” the picture.

What about quality, today one of best pictures provide HDMI and Display Port (resolution up to 4K, with simultaneous audio signal transmission, and with virtually complete absence interference).

Classic USB and USB Type C

By the way, on new laptops and PCs you can find USB Type C connector . Of course, it has not yet received widespread use, but it looks promising. Allows you to “hot” connect the monitor to a PC, simultaneously transmitting audio and video signals. In some cases, even additional food the monitor is not required - enough power from the USB port.

You might find this article useful on how to properly connect a monitor to a laptop (step by step instructions) -.

That's all for today, good luck everyone!


2024 gtavrl.ru.