Features: Support four hard drives. Support more than 137 GB capacity hard disk (48-bit LBA). Support for RAID 0, for RAID 1, for RAID 5, for 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 for Windows 98SE / Me / 2000 / XP / NT 4.0 / XP 64-bit / Vista/Linux & Netware OS. Specifications: Chipset: Silicon Image Sil3114 Package weight: 100g SATA: Support four internal SATA interface, the transmission rate is up to 1.5Gb / s Supports SATA 1.0 standard 256 bytes FIFO port for quick read / write operation For RAID: Support for RAID 0, for RAID 1, for RAID 5, for RAID 0 + 1 mode, support JBOD Supported device: Hard disk, CDROM, DVD ROM, CD-R, CD-RW, DVD-R, DVD-RW, and the like System Requirements: There is at least one available 32-bit PCI slot on the PC Supported Operating Systems: for Windows 98SE / Me / 2000 / XP / NT 4.0 / XP 64-bit / Vista/Linux & Netware OS. Package Lilst: 1 x PCI to 4 Port SATA for RAID Card 1 x Drive CD Note: .Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.