4-Port SATA PCI Raid Expansion Card with Software CD & 2 SATA Cables Description: This is a PCI expansion/adapter card with 4 SATA ports allowing for more devices to be hooked up in your computer, an ideal hardware for upgrading your computer. Features: Stable and reliant Silicon Chipset SIL3114 PCI specification revision 2.3 compliant w/ 32-bit 33/66Mhz host interface Serial ATA specification revision 1.0 compliant Data transfer rate up to 150MB/s. (1.5Gbps) Connect up to 4 SATA drives Plug &amp; Play connection Software application included