With 40Gbps of throughput and support for other high-performance PCIe cards, you can swap the card in and out, to add the peripherals you need connected to a Thunderbolt 3 desktop or laptop computer. By avoiding performance bottlenecks, you can accomplish more in the same amount of time. Thunderbolt 3 is the fastest connection available. It reduces performance bottlenecks and doubles your total available bandwidth to 20Gbps. With two host controller chipsets, shared across two ports instead of four, this 4-port Thunderbolt 3 to USB 3.1 adapter dedicates up to 10Gbps for each set of two USB ports. The adapter combines the USB 3.1 PCIe card (PEXUSB314A2V) and the TB3 chassis (TB31PCIEX16).
Providing up to 10Gbps throughput, the adapter offers four USB 3.1 ports on two independent bus channels, an additional TB3 port, and a DisplayPort output.
Connect your Thunderbolt™ 3 enabled computer to external USB 3.1 (Gen 2) devices using this Thunderbolt 3 to PCIe USB 3.1 adapter.