Small form factor PCI Express card with 2 x SFF-8088 connectors PCI-Express SAS / SATA 6Gbit/sec 8-port controller 8 x external SAS / SATA 6Gbit/sec ports via 2 x SFF-8088 connectors Supports SAS / SATA data transfer rates: 1.5, 3 and 6Gbit/sec Suitable for standard and low profile slot. Low profile bracket included Operating Systems: Windows XP / Vista / 7 / Server 2003, 2008 Connect up to eight SAS or SATA drives via two external mini-SAS (SFF-8088) connectors with supports for speeds up to 6Gbit/sec when installed into PCI-Express 2.0 slots. This controller is ideal for connecting storage system with mini-SAS or multilane (SFF- 8487) interfaces or for installing in desktops, small form factor systems, rack mount system and other computing equipment.