WIDELY USE:Screw holes 2230/2242/2260/2280 available to fix M.2 SSD cards,Please connect the motherboard by SATA cable if insert M.2 SATA SSD ( B key slot),No additional power required OS REQUIRES:Supports any OS, like Windows, Mac and Linux, etc,just make sure the operating be compatible with hard disk DUAL Port(SLOT):M.2 B Key(ngff)/M.2 M Key(nvme) SSD to PCI-E 4X Adapter Card