Features: 1.Connection method: Connect the 2.5 inch U.2 (SFF?8639) PCIe NVMe SSD to the PCIe x4 slot in the system via the SFF?8643 cable (not included). 2.Best Solution: This is the best and easiest solution to install an ultra high performance enterprise class PCIe NVMe U.2 SSD in your desktop for gaming enthusiasts and workstation market. 3.Parameter: Interface: PCIE X4 to SFF?8643. Hardware requirements: PCIe 3.0 x4/x8/x16, backward compatible with PCIe 2.0/1.0. 4.U.2 2.5in PCIe NVMe SSD: Allows you to install a PCIe NVMe U.2 2.5in SSD drive to your PC system via a PCIe 3.0 x4 card. Convert U.2 2.5in PCIe NVMe SSD to motherboard PCIe x4 bus slot. 5.Support System: Support for Windows2000, for xp, for server2003, for xp 64bit, for Vista, for win7, for linux, for DOS, for OS X. specification:Item Type: PCIE X4 to U.2 Adapter Card Material: PCB Interface Type: PCIE X4 Applicable Models: Conventional Desktop Expansion Interface: Mini-SAS HD (SFF-8643, 36 Pin) Female Support System: for Windows2000, for xp, for server2003, for xp 64bit, for Vista, for win7, for linux, for DOS, for OS X Hardware Requirements: PCIE 3.0 X4/x8/x16, Backward Compatible with PCIE 2.0/1.0 PackageList:1 x PCIE X4 to U.2 Adapter Card NoteNote: Not all for BIOS systems support NVMe formatted U.2 drives, you need a BIOS with UEFI. So check with your device manufacturer to make sure you can use it.