1. SFF-8639 U.2 to NGFF M.2 M-key PCI-e SSD Adapter for Mainboard Replace SSD 750 p3600 p3700, With Black Case Enclosure, This converter enables the connection of a Supports M.2 modules in format 2280, 2260, 2242 and 2230 with key B or key B+M based on SATA or PCI-e. 2. Can be installed into the system internally through the SATA Express interface or through the U.2 (SFF-8639) interface. 3. for Mainboard Replace SSD 750 p3600 p3700. application of double-sided assembled modules supported 4. System requirements: for Windows 10, for Linux 3.16 and A free U.2 SFF-8639 interface 5. NVME U.2 SFF-8639 Male & Dual 67 pin M.2 NGFF slot to Combo NGFF M.2 M-key SATA PCI-e SSD Adapter Colour:Black Material:Aluminum alloy Package Contents: 1 x U.2 to M.2 M-Key SSD Enclosure 4 x M.2 Black screw 2 x M.2 screw 2 x Standoff 1 x Screwdriver Only the above package content, other products are not included. Note: Light reflection 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 +/- 1-3cm.