ITEM NAME:SFF-8639 NVME U.2 to NGFF M.2 M-key PCIe SSD Adapter for Mainboard Description: 1. This converter enables the connection of a M.2 NGFF SSD in 2280, 2260, 2242 and 2230 format. 2. Need M-key or SSD, the B-key or B/M-key SSD cannot work. 3. The converter can be installed into your system internally through the U.2 68 pin interface. 4.Connector: U.2 SFF-8639 male & 67 pin M.2 NGFF key M slot 5. Supports M.2 NGFF modules in format 2280, 2260, 2242 and 2230 with key M 6. Maximum height of the components on the module: 1.5 mm 7. Application of double-sided assembled modules supported Specification: System requirements : Windows 7/7-64/8/8-64/8.1/8.1-64/10/10-64, Linux Kernel 3.16 A free U.2 SFF-8639 interface or A free SFF-8643 interface Package Includes: 1 Piece SFF-8639 U.2 to NGFF M.2 M-Key PCIe SSD Adapter.This converter enables the connection of a M.2 NGFF SSD in 2280, 2260, 2242 and 2230 format. Connector: U.2 SFF-8639 male & 67 pin M.2 NGFF key M slot. Supports M.2 NGFF modules in format 2280, 2260, 2242 and 2230 with key M.