1. Interface: 2 internal SATA interfaces, 1 ATA133 interface, 2 external ESATA interfaces (external ESATA and internal SATA can only use 2 at the same time, select by jumper, the default is 2 internal SATA interfaces).2. Support RAID 0, RAID 1, RAID 0 + 1 mode, support JBOD. Comply with PCI-Express 1.0 standard, PCI-Express speed is 2.5/s full duplex channel.3. The driver supports Windows 2000 / xp / 7/8 / server 2003 / xp 64 bit / Vista, Mac, Dos.4. Supports Ultra ATA 133 hard disks, and supports Ultra ATA 100/66/33 standards downwards5. Support 1 external ESATA interface and 1 internal SATA interface, transfer rate up to 3Gb/s, and support SATA 1.0 standard.specification:RAID array: support RAID 0, RAID 1, RAID 0 + 1 mode, support JBODTransmission rate: 133MB/sec, ATA133Chip: JMB363Support capacity hard disk (48-bit LBA mode): 137 GB or moreOne IDE interface: supports up to 2 IDE devicesMaterial:PC+metalcolour:BlackPackage Contents:1 x Express Expansion CardOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.