PCI-X SATA II 4-Port RAID Controller Card 1.RAID 0,1,5,10 & JBOD(optional) 2.Plug'n Play 3.3Gb/s ... CardFeatures2-External and 2-Internal SATA II Ports (optional)RAID 0, 1, 5, 10 & JBOD (Optional)PCI-X 64-bit 133MHz InterfaceBackward ... Ports: 4-Internal w/RAID or w/o RAIDeSATA Compatible for all External Ports RAID (optional)RAID 0, 1, 5, 10 JBOD function supported