With support for data transfer up to 10Gbps, this expansion card is a necessity for external drives, and is great for file backups, video editing, and data recovery. Support for WinXP, , Win8, Win10, . Features - Color: Black. - Size: 12.00X8.50X2.00cm/4.72X3.34X0.79in - Material: PCB. - It is made by high grade material, which could be used for a very long time. - It allow users -ports USB 3.1 Type desktop computers by PCI slot. - The 2X USB 3.1 type C ports can provide ultra speeds 10Gbps max data transfer for USB 3.1 peripheral device, such as SSD enclosure, external HDDs, flash drives, USB hubs etc. - USB3.1 : The PCI-E card is equipped with 10Gbps bandwidth, which ensures fast data transmission, speeds of USB3.1 for individual port. - The excellent workmanship of our product will bring you a . Package list: 1 x Expansion Card