The PCI-Express SATA host controller card expands your computer by eight SATA ports. You can connect devices such as SSD's, HDD's, DVD drives, etc. to the card. The orientation and position of SATA ports are well designed so that the cable wiring fits easily in the computer chassis. OS SUPPORTED: Windows 7, 8, 10 Windows Server 2008/R2, 2012/R2 Linux Mac OSX