PCIe to SATA 3.0 2 Port Expansion Card with a low profile Bracket and 2 SATA Cable. Built in 2 SATA3.0 interfaces Supports SATA Rev 3.0 transfer speeds up to 6.0Gbps and backwards compatible with SATA I/II at 1.5/3.0Gbps. Support IDE or AHCI programming interface. Compliant with Serial SATA version 3.0. Compliant with PCI-E 2.0 specification. Connect 2 mass storage devices at the same time. Compatible with Windows XP/Server 2003/Vista/7/8(32/64 bit)/10/MAC/Linux OS.