Features: brand new and high quality subsidiary ASMeida ASM3142 chip as the main control. Expansion cards that can support USB3.1 dual-port Type-C on the market Because the USB3.1 power supply can use the built-in DC-DC power supply, it can work without plugging in the Sata power supply. The expansion card uses 3 SMD solid capacitors, which greatly ensures the stability of the USB power supply. Direct cooperation with the original factory can provide strong after-sales technical support, and the earliest update of firmware and drivers. Let the pro-card use worry-free. The new board adds self-recovery insurance to double protect USB devices Specifications: Product Name: USB3.1 Front Type-E Expansion Card Product Model: PCE1U1E-A31 Product Master: ASMedia ASM3142 Product Interface: Type-E 20PIN Support System: WIN8 WIN10 Size approx：12X75X65MM/0.47x2.95x2.56in Driver installation instructions: Package Includes: 1 PC x PCI E 2X to Type E Adapter Card note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!