Add four independent disk ports to your PCI-equipped computer and enjoy the advantages of optional RAID configuration software for higher speed and / or data security card with this adapter. Connect the PCI RAID SATA card to the PCI slot on your motherboard, and connect SATA devices to the ports on the PCI card using the supplied cables, or standard SATA cables of an appropriate length. The card comes with an optional RAID utility that allows you to configure a RAID 0, RAID 1, or RAID 0 + 1 configuration on two or more of the SATA ports. You can have a RAID 0 or 1 configuration and two independent SATA drives, two sets of RAID 0 or 1, or a single set of RAID 0 + 1 Supports two models: at66mhz 32-bit and 64-bit 133 MHz Serial ATA Specification Revision 1.0 Compliant Data transfer speed up to 150MB / s. (Gbps) Connects up to 4 SATA hard drives Plug & Play connection Software included RAID functions: Integrated SATA transport, link logic and PHY layer Supports 4 independent Serial ATA channels Supports RAID 0, 1, 5, 0 + 1, jbod12 Supports 256-byte transmit and receive fifos Supports programming and EEPROM, FLASH & EPROM loadable PCI class mode Supports ATAPI devices: CD-ROM, DVD-ROM, etc. 48-bit sector Addressing virtual DMA Connectors: Internal: 4 x SATA Connectors External N / A Before buying, please check the following: You have a spare PCI port and slot (not PCI-E) on your computer motherboard and sleeve .Not compatible with A7 V8 X -LA motherboard Not compatible with free BSD based system. The drives that you want to connect your computer internally to you are SATA hard drives. If your PC does not meet these requirements, this adapter will not work with your computer. Item is brand new and sealed. Colour: black Material: plastic + metal Package Contents: 1 x 4-Port SATA PCI Expansion Card(Due to different production batches, there may be differences in product appearance) 2 x SATA Cable(The cable color is random, don't accept the specified color) 1 x Software CD Only the above package content, other products are not included. Note: Light 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.