GIGABYTE Unveils USB 3.2 Gen 2x2 20 Gbps PCIe Expansion Card
 

GIGABYTE has introduced the industry’s first PCIe expansion card for USB 3.2 Gen2x2 ports. Offering the latest generation in USB connectivity, with a total throughput of 20Gbps, the board adds a single Gen2x2-capable USB-C port for systems to take advantage of the higher throughput USB standard.

The GIGABYTE GC-USB 3.2 Gen 2x2 PCIe expansion card is based on the ASMedia ASM3242 host controller, which allows for data transfer rates of up to 20 Gbps (2.5 GB/s) when working with compatible devices. The same controller is used on various AMD TRX40-based motherboards and will likely be used on other platforms to enable the standard as well. The card relies a PCIe 3.0 x4 slot, and atypically for USB-C add-in cards, doesn't require an additional power plug to drive the card or attached peripherals.

As a quick refresher, the USB 3.2 Gen2x2 uses two high-speed USB Type-C Tx/Rx channels to achieve 20 Gbps maximum throughput. By doubling the number of USB high speed data channels in use, the 2x2 standard is a very straightforward extension of USB 3.2 Gen2, taking advantage of the additional high speed lanes offered in a USB-C cable. To date we've only seen these extra lanes used for alt mods (e.g DisplayPort and Thunderbolt), but the USB-C cable was always designed with this in mind, and now the necessary controllers are finally catching up.

https://www.anandtech.com/show/15170...expansion-card