The adapter is SFF-8639 U. 2 port not SATA/NGFF/M. 2 port.. Need M-key or NVME SSD, the B-key or B/M-key SSD cannot work.. Supports M. 2 NGFF modules in format 2280, 2260, 2242 and 2230 with key M.
Note: for M-key or NVME SSD, please Update to add native driver support in NVM Express in Windows 7 and Windows Server 2008 R2. it is u2 port, it can not work for SATA hard disk,
System requirement: A free U. 2 SFF-8639 interface or A free SFF-8643 interface.