Those who have purchased NVIDIA’s rtx20 series may find that there is a type-C interface next to the video output interface of their graphics card, and NVIDIA’s official does not publicize this interface too much, just stating that it supports virtual link technology. So what is virtual link technology?

Introduction to the usage of type-C interface on graphics card

NVIDIA, oculus, valve, Microsoft and AMD lead to form an alliance called “virtual link”, mainly to establish a unified VR device specification. Virtual link is an open industry standard, which aims to solve the connection requirements of current and next generation VR head display. In the past, VR devices often needed more than three cables to connect computers, such as HDMI display output, USB data interaction and 3.5mm audio interaction. The type-C interface adopted by the virtual link can solve the problems of power supply and data transmission by one wire.

Introduction to the usage of type-C interface on graphics card

According to the standard specification of virtual link, it supports 10 Gbps USB transmission bandwidth, which is equivalent to the data bandwidth of USB 3.2 Gen2. The video output bandwidth is 32.4gbps, which is the same as that of DisplayPort 1.4 (DP). In terms of power output, it supports 15W charging power at least and 27W charging power at most, that is, it supports qc3.0 protocol.

Since the virtual link interface supports video output, QC charging and data transmission, why not plug the device in?

Introduction to the usage of type-C interface on graphics card

Calf connected the mobile phone to the graphics card with the type-C to type-C (C to c) cable of a meter PD charger. Since calf used a certain star mobile phone, the mobile phone successfully displayed the prompt of accelerated charging, that is, QC 3.0 18W fast charging, tried to copy the files on the mobile phone, but the speed was only 55 ~ 60MB / s, which should be the problem of wire, As the calf cable is just a common type-C to type-C (C to c) charging cable, the supported transmission speed is only up to USB 2.0, 480mbps, which has basically reached the upper limit of the interface.

At present, the virtual link interface supports at least 18W of charging power. Those who buy “fast charging chassis”, fast charging expansion card and so on can save a lot of money. They only need to buy a type-C to type-C (C to c) charging cable to charge the mobile phone.

If you still need high-speed transmission, you can also buy a 5Gbps type-C to type-C (C to c) data cable, because most mobile SSDs and mobile phones support USB 3.2 GEN1 (USB3.0, USB 3.1) GEN1), so a 5Gbps / s data line is enough, because the price of 10Gbps data line is amazing, and the high-speed solid-state disk supporting 10Gbps will bring its own wire.

Introduction to the usage of type-C interface on graphics card

As mentioned earlier, the virtual link interface also supports the video output of the type-C interface. If your monitor also supports the type-C signal input interface (not the charging interface of the type-C), you can also use a type-C cable to directly connect to the monitor. However, when purchasing wire, you should pay attention to it. At least you need to buy USB 3.2 Gen2 Gen2) 10Gbps wire, otherwise it will not be able to carry video signal due to insufficient bandwidth. You can also buy lightning 2 (lightning 2) 20gbps, lightning 3 (lightning 3) 40Gbps wire to use, but the price is expensive, need to trade-off according to the display resolution, refresh rate and other parameters.

Buy RTX video card, send type-C expansion card, fast charging charger. Lao Huang’s skill is really unexpected. It can be regarded as an invisible welfare for n-card players. However, many manufacturers have cut off this interface on the low-end rtx2060 graphics card, which is a pity for rtx2060 players.

The above is the main use of rtx20 Series graphics card type-C, because type-C is more and more popular, more ways to play the interface are waiting for you to develop.

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