Features: 100% brand new and high quality Input interface: using the latest USB3.1 Type-A interface.Data transfer rate can reach USB 3.1 10Gbps. The PCI-E card is equipped with a bandwidth of 10 Gbit / s, which ensures fast data transfer and the real speed of USB 3.1 for the individual port. USB3.1 out, the speed is very fast, but the ordinary hard drive simply not so fast speed, must use SSD to achieve so fast speed. Easy installation, the product is powered directly from the PCIe slot on the motherboard. No external power supply required and installation is worry-free. Equipped with high performance chipset ASM1142 with more technology will protect users data safety than ever. Package Includes: 1 PC x PCI Express to USB3.1 Type-A Adapter Card Specifications: Name: PCI-E X4 to Dual Type-A Expansion Board Type: USB 3.1 PCI-E Card Interface: Dual USB3.1; Sata 15P interface Transfer Speed: 10Gbps Chip: ASM1142 Size:approx 120x95mm/4.72x3.74in System support: WinXP/Vista/Win7/Win8 32bit/64bit MAC10.8 note: Only the above package content, other products are not included. Note: Light shooting 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 0-3cm.