Chipset: Silicon Image SIL3124  1-Lane (x1) PCI-Express with transfer rate 2.5Gb/s full duplex channel  Internal Serial-ATA port x 4  SATA II interface  Compliant with Serial ATA II Specification  Compliant with Gen2i, Gen2m SATA II Electrical Specification Revision 1.0  Backward compatible to SATA 1.0 Specification  Support 4-independent SATA ports with data transfer rate at 3.0Gb/s  Support Native Command Queue (NCQ), FIS-Based Switching with Port Multiplier  Optional Connection Ports: 4-Internal w/RAID or w/o RAID  RAID (optional) RAID 0, 1, 5, 10 JBOD function supported  Support Win2000/XP/Server 2003/XP 64-Bit, Linux OS, Mac OS