This Dynamode 4-Port SATA PCI Card will connect to your motherboard & provide you with four SATA ports. Devices that can be connected to the SATA ports include hard drives & CD/DVD drives. This device is PCI 2.3 compliant & supports the SATA 1.0 revision. If you are considering implementing RAID technology (RAID 0, 1, 5, 0+1 or JBOD) in your computer to improve speed & safety, the 4-Port SATA PCI Card is for you!