PCI 3 Port SATA +1 IDE Serial HDD ATA Card Adapter US Stock Features: Brand New 3 xSerial ATA ports (2 internal, 1 external) &1 Ultra ATA port. Serial ATA (sata) host controller chip with 32-bit interfacing. Compliant with serial ata 1.0 specification Supports two independent serial ata ports with data transfer rate up to 1.5Gb/s . Built-in 256 byte FIFO per port for fast read/write operations. Supports Microsoft generic ide operation and Intel bus master DMA operations. Raid function Optional System Requirements: Windows 98SE/Me/2000/XP/Vista/Win7 Package Includes: 1 x 3 Port SATA +1 IDE PCI Controller RAID Card Adapter