^ "NVIDIA Unveils Quadro RTX, World's First Ray-Tracing GPU"."GeForce RTX Cards Announced with VirtualLink VR Connector". ^ "VirtualLink Removes Tangles from VR Goggles".^ "Virtual reality giants unveil VirtualLink as a standardized cable that may simplify VR rigs"."VirtualLink USB-C Alt Mode Announced: Standardized Connector for VR Headsets". ^ a b c d Smith, Ryan (July 17, 2018).^ "VirtualLink: Everything USB Type-C Is Supposed To Be".^ "The next generation of VR headsets will connect over a single USB-C cable".By September of that year, it had been abandoned by its consortium, and the website now redirects to its Wikipedia page. The Valve Index had initially developed a VirtualLink accessory, but it was canceled due to technical signaling and reliability issues. Discontinuation & abandonment Īs of August 2020, the VirtualLink standard had failed to propagate into the virtual reality headset market. By contrast, the AMD Radeon RX 6000 series, announced in October 2020, implemented a VirtualLink port for the first time. ![]() Īs of Nvidia's GeForce 30 series cards announcement, all of Nvidia's new Founders Edition GPUs, alongside the partner boards announced so far, lacked a VirtualLink port due to its discontinuation. This port was also made available on Quadro RTX cards. Nvidia GeForce 20 series cards, initially released in 2018, implemented a single VirtualLink port in all RTX Founders Edition (FE) cards (2060, 2070, 2080, 2080 Ti). Implementation in graphics cards and devices The available bandwidth was estimated to be equivalent to DisplayPort 1.4 (32.4 Gbit/s, up to 4K 120 Hz with 8 bpc color) for video and 10 Gbit/s of USB 3.1 Gen 2 data. To achieve six high-speed lanes over USB-C, VirtualLink required special cables that conformed to version 1.3 of the USB-C standard and used shielded differential pairs for both USB 2.0 pairs. No information pertaining to VirtualLink alternate mode compatibility with USB4 (and so Thunderbolt 3 alternate mode) had been published. VirtualLink also required the PC to provide 15 to 27 watts of power. ![]() 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 (SuperSpeed+) over the same A6, A7, B7, B6 pins. ![]() In VirtualLink mode, there were six high-speed lanes active in the USB-C connector and cable: four lanes transmit four DisplayPort HBR 3 video streams from the PC to the headset while two lanes implement a bidirectional USB 3.1 Gen 2 channel between the PC and the headset. Also this required the VirtualLink port to also detect the correct orientation of the USB-C plug to ensure that the USB 3.0 TX and RX lanes are correctly connected. This means that one would not be able to extend the cable using a standard USB-C 3.0 cable, which has these pins mapped only for unshielded USB 2.0 signals. Unlike most alt-modes this remapped A7, A6, B6, B7 to carry a USB 3.0 signal, instead of the usual passive USB 2.0 signal. I2C wire to control the USB Billboard interface, in case the cable is plugged into an unsupported interface.A USB RX balanced pair for USB 3.0 data.A USB TX balanced pair for USB 3.0 data.DisplayPort AUX signal as a balanced pair.DisplayPort HPD (hot-plug detection pin) as a single wire.2 Implementation in graphics cards and devicesĪccording to its specifications, the VirtualLink cable consisted of:.
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