Features: *Chipset: Silicon Image Sil3114 *Support four hard drives. *Support more than 137 GB capacity hard disk (48-bit LBA). *Support RAID 0, RAID 1, RAID 5, RAID 0 + 1 mode, support JBOD. *4 internal SATA interface, the transmission rate is up to 1.5Gb / s. *Supports PCI 32-bit bus; Bus speed of 33MHz / 66MHz; PCI 2.3 Standard . *PCI "Plug and Play" compatibility. *Applications: 150MB / sec (S-ATA Rev1.0 theoretical value). *Support Windows 98SE / Me / 2000 / XP / NT 4.0 / XP 64-bit / Vista, Linux & Netware OS.