1. Adopt D720201 master control. Because the USB interface defines a large current, a power supply module is specially designed. It can be used without additional power supply. The expansion card uses multiple solid capacitors, which greatly ensures the stability of USB power supply 2. Firmware and driver are updated first 3. Each interface of the board has added self-recovery insurance to double protect USB devices 4. Supports simultaneous operation of multiple USB 3.2, 3.1, 3.0, USB 2.0 and USB1.1 devices 5. Supports USB data transmission rates of 5G/480M/12M/1.5Mbps Product name:Type-A*2+Type-C*2 interface expansion card External interface:PCI-E 1X (compatible with 1X, 4X, 8X, 16X) Interface rate:USB3.2 gen1 5Gbps Supported chassis:2U small chassis/4U large chassis Main control chip:D720201 System support:for WINXP WIN7 WIN8 WIN10 WIN11 LINUX Driver description:Driver-free for systems above WIN10, the speed be faster than the original-driver Color:Black Material:PCB Package Contents: 1 * Expansion Card Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.