Product name: USB3.2 GEN2 * 2 20Gbps TYPE-C expansion card Product master: Asmedia ASM3242 Product weight: 100g Product interface: Single port TYPE-C (20G must be to run at port C because it requires 4 pairs of signal lines) Support system: WIN10/WIN11 32/64BIT//linux matters needing attention: A: This expansion card belongs to the USB3.2 GEN2 * 2 standard and is backward compatible with USB3.0 and USB2.0 B: USB3.2 is a 4X interface, which can be plugged into a 4X 8X 16X slot. For high speed, PCI-E3.0 on the motherboard is required. D: The system only supports above WIN10/WIN11, which are by the system itself and do not need to be installed separately. Because SATA power sockets are plastic and not made of iron, the cables are relatively tight. When inserting the cables, you must hold the back of the sockets inserting the cables. When inserting the cables with force, the sockets will tilt up, and you can use without inserting the power cables. Material: PCB+metal colour: black Package Contents: 1 x USB3.2 expansion card 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.