4 Port PCI X SATA II Hardware RAID Controller Kit

The 3ware 9550SX PCI X to Serial ATA II RAID controller delivers over 800 MBsec RAID 5 reads and exceeds 380 MBsec RAID 5 writes, making it 200percent faster than the industry leading 3ware 9500S RAID controller. 7th generation StorSwitch non blocking switch fabric technology and sophisticated SATA II features including 3 Gbps transfer speed, Native Command Queuing, and Port Multiplier support drive this unmatched performance.