VirtualLink: Difference between revisions
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The available bandwidth is estimated to be equivalent to DisplayPort 1.4 (32.4 Gbps, up to 4K @ 120 Hz with 8bpc color) for video and 10Gbps of USB 3.1 Gen 2 data.<ref name=anandtech-virtuallink20180817/> |
The available bandwidth is estimated to be equivalent to DisplayPort 1.4 (32.4 Gbps, up to 4K @ 120 Hz with 8bpc color) for video and 10Gbps of USB 3.1 Gen 2 data.<ref name=anandtech-virtuallink20180817/> |
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[[Nvidia]] [[GeForce 20 series]] cards, released in 2018, will implement a single VirtualLink port in all RTX cards (2070, 2080, 2080Ti).<ref>{{cite web|url=https://www.roadtovr.com/nvidia-geforce-rtx-virtuallink-vr-connector/|title=GeForce RTX Cards Announced with VirtualLink VR Connector|first=Ben|last=Lang|date=20 August 2018|publisher=Road to VR}}</ref> This port is also available on Quadro RTX cards.<ref>{{cite web|url=https://nvidianews.nvidia.com/news/nvidia-unveils-quadro-rtx-worlds-first-ray-tracing-gpu|title=NVIDIA Unveils Quadro RTX, World’s First Ray-Tracing GPU|publisher=NVIDIA}}</ref> |
[[Nvidia]] [[GeForce 20 series]] cards, initially released in 2018, will implement a single VirtualLink port in all RTX cards (2060, 2070, 2080, 2080Ti).<ref>{{cite web|url=https://www.roadtovr.com/nvidia-geforce-rtx-virtuallink-vr-connector/|title=GeForce RTX Cards Announced with VirtualLink VR Connector|first=Ben|last=Lang|date=20 August 2018|publisher=Road to VR}}</ref> This port is also available on Quadro RTX cards.<ref>{{cite web|url=https://nvidianews.nvidia.com/news/nvidia-unveils-quadro-rtx-worlds-first-ray-tracing-gpu|title=NVIDIA Unveils Quadro RTX, World’s First Ray-Tracing GPU|publisher=NVIDIA}}</ref> |
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==See also== |
==See also== |
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Revision as of 06:04, 8 January 2019
VirtualLink is a proposed USB-C alternate mode that allows the power, video, and data required to power virtual reality headsets to be delivered over a single USB-C cable and connector instead of set of three different cables as it was in older headsets.[1][2] The standard is supported by Nvidia, Advanced Micro Devices, HTC Vive, Oculus VR, Valve Corporation, and Microsoft.[3] VirtualLink 1.0 may be standardized in 2018.
In VirtualLink mode there are six high-speed lanes active in the USB-C connector and cable: 4 lanes transmit four DisplayPort HBR 3 video streams from the PC to the headset while two lanes implement bidirectional USB 3.1 Gen 2 channel between the PC and the headset. Unlike the classic DisplayPort USB-C alternate mode, VirtualLink has no USB 2.0 channels active, instead providing a higher speed USB 3.1 Gen 2 over the same A6, A7, B7, B6 pins. VirtualLink also requires the PC to provide 15 to 27 Watts of power.[3][4]
To achieve 6 high-speed lanes over USB-C, VirtualLink requires special cables that conform to version 1.3 of the USB Type-C standard and uses shielded differential pairs for both USB 2.0 pairs.[3][5]
The available bandwidth is estimated to be equivalent to DisplayPort 1.4 (32.4 Gbps, up to 4K @ 120 Hz with 8bpc color) for video and 10Gbps of USB 3.1 Gen 2 data.[3]
Nvidia GeForce 20 series cards, initially released in 2018, will implement a single VirtualLink port in all RTX cards (2060, 2070, 2080, 2080Ti).[6] This port is also available on Quadro RTX cards.[7]
See also
References
- ^ "The next generation of VR headsets will connect over a single USB-C cable". The Verge.
- ^ "VirtualLink: Everything USB Type-C Is Supposed To Be". Forbes. 2018-08-17.
- ^ a b c d Smith, Ryan (July 17, 2018). "VirtualLink USB-C Alt Mode Announced: Standardized Connector for VR Headsets". AnandTech. Retrieved 2018-08-21.
- ^ "Virtual reality giants unveil VirtualLink as a standardized cable that may simplify VR rigs". PCWorld.
- ^ "VirtualLink Removes Tangles from VR Goggles". EEJournal. 7 August 2018.
- ^ Lang, Ben (20 August 2018). "GeForce RTX Cards Announced with VirtualLink VR Connector". Road to VR.
- ^ "NVIDIA Unveils Quadro RTX, World's First Ray-Tracing GPU". NVIDIA.