1.Ports: i.1 Ultra ATA133 Port ii.2 SATA Ports 2.Chipset: VIA VT6421A 3.SATA RAID 0, 1, 0+1, JBOD Supported 4.PCI 32-bit 33MHz Interface 5.Compliant with PCI Specification 2.2 6.Supports PCI Bus-Master Access 7.Plug and Play 8.Totally Software Transparent with PATA and SATA 9.IDE (Parallel ATA) Interface: i.Support Ultra DMA Mode Transfer up to Mode 6 Timing ii.Transfer Rate up to 133MB/s iii.48-bit LBA Mode for Connecting HDD More Than 137GByte iv.Supports PIO Mode 4, 2, 1 v.Supports up to 2-IDE (PATA) Hard Disks 10.SATA (Serial ATA) 1.0 Specification: i.Supports up to 2-SATA Hard Disks ii.RAID 0, 1, 0+1, JBOD Support