Features: Brand new and high quality PCI to add four independent SATA ports to your PCI-equipped computer and enjoy the benefits of optional software RAID configuration for increased speed and/or data security with this adapter card. (Note: This is a PCI card, NOT a PCIE card). This is a Plug-in SATA to RAID PCI card. Insert the SATA to RAID PCI card into the PCI slot on your motherboard and connect SATA devices to the ports on the PCI card using the included cables or standard SATA cables of sufficient length. The card comes with an optional RAID utility that allows you to configure a RAID 0, RAID 1, or RAID 0+1 setup on two or more of the SATA ports. You can have a RAID 0 or 1 setup and two independent SATA drives, two RAID 0 or 1 sets, or a single RAID 0+1 set. SATA ports. SIL3114 chipset and supports two modes: 32-bit at 66MHZ and 64-bit at 133MHZ. Specifications: Stable and reliable Silicon Chipset SIL3114 PCI specification revision 2.3 compliant with 32-bit 33/66Mhz host interface. Serial ATA specification revision 1.0 compliant Data transfer rate up to 150MB/s. (1.5 Gbps) Connect up to 4 SATA devices Plug & Play connection Software included RAID function: Integrated SATA Transport, Link logic, and PHY layers Supports 4 independent Serial ATA channels Supports RAID 0, 1, 5, 0+1, JBOD12 Supports 256-byte transmit and receive FIFOs Supports programmable and EEPROM, FLASH & EPROM loadable PCI class mode Supports ATAPI devices: CD-ROM, DVD-ROM, etc. 48-bit sector addressing Virtual DMA.