1. Reversible USB-C/Type-C connector design (plugs in both ways) allows you to conveniently connect cable in any orientation. 2. Supports up to 5 USB devices: 3 Port TYPE C + 2 Port USB3.2 GEN2. 3. 3 external USB-C + 2 external USB3.2 GEN2 Type-A female connectors. 4. Supports simultaneous operation of multiple USB 3.2/2.0/1.1 devices. 5. Can be used normally without external power supply. 6. Each TYPE C port can support 2A high current output, and each TYPE-A supports over standard 900MA to 1A current output. Bus Type: PCIE X4, Compatible PCIE X4/X8/X16 Main Chips: ASM2142+VL822 Interface: USB3.2 GEN2 TYPE-A*2 + TYPE-C*3 Speed: 10Gbps Support System: 7/10/11, Linux OS. (WIN7 need install the usb card driver, Recommended for use with more than 10 systems) Colour:black Material:PCB+Metal Due to different product batches, the appearance , which does not affect the use Package Contents: 1 x PCI-E Expansion Card Adapter 1 x Low Profile Bracket 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.