Features: and high Compatible with PCIe x8 or x16 slot, this riser card can be transferred out of 2xu2 interface (SFF-8643) through the PCIe x8 slot. Users can transfer SFF-8643 to data cable (SFF-8639) and connect 2x u.2 SSD bus broadband at the same time. Installation is simple and no driver is required. Committed to solving the increasing storage needs of users. Color: Black material: plastic Support System: Windows2000 or xp or server2003 or xp 64bit or Vista or win7 linux or Specification: Product Model: PCIE to u.2 Adapter Card Interface Type: PCIE Applicable Models: Conventional Desktop Computers Expansion Interface: SFF-8643 note: The motherboard needs to support the split function, and does not support the use of a single interface. For personal computers have one or more standard PCIE slots. Package Contents: 1 x Pcie Expansion Riser Card Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.