1. Reversible USB-C/Type-C connector design (plugs in both ways) allows you to conveniently connect cable in any orientation2. Supports up to 8 USB devices: 4 Port TYPE C + 4 Port USB3.2 GEN23. 4 external USB-C + 4 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.Each TYPE C port can support 2A high current output, and each TYPE-A supports over standard 900MA to 1A current output.Premium material and workmanship, high quality and long lifespan.Bus Type:PCIE X4, Compatible PCIE X4/X8/X16Main Chips:ASM3142+VL822+VL822Output interface:TYPE-A*4 + TYPE-C*4Interface specification:USB3.2 GEN2Product Rate:10Gbps+10Gbps (total 20Gbps)Support size:full-height baffle/does not support small chassisSupport System:for 7/10/11, Linux OS. (WIN7 need install the usb card driver And the speed is slow. It is recommended to use on systems above 10)AboutWhen used alone, a single port can theoretically achieve a speed of 10Gbps.When 4 USB-A ports are used simultaneously, they share 10GB, and when 4 USB-C ports are used simultaneously, they share 10GB!Colour:BlackMaterial:PCB+MetalPackage Contents:1 x USB3.2 GEN2 TYPE-A*4 + TYPE-C*4 PCIE CardOnly 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.