This enclosure provides one 7+15 Pin connector on the host connection and one 67pin B key M.2 connector on the SSD storage devices connections. Compatible operating systems: DOS, Windows 95, 98, XP, 2000, Vista, Win 7, 8 and 10, Linux, Unix etc. The enclosure allows the installation of SSD as system disk, boot the operating system directly without having to install any drivers, but does not affect the execution speed of the SSD storage devices.