Chipset: VIA VT6421 Raid 2 Channel SATA & ATA 133 Raid 2 Extern Sata / 2 Intern Sata connectors 1 PATA Connector Compliant with PCI specification Rev 2.2 Compliant with PCI "Plug & Play" 32-bit 33MHz PCI interface Drive support: Serial ATA, Ultra ATA/133, Ultra ATA/100, Ultra ATA/66 Support ACPI and ATA/ATAPI6 48-bit LBA support: Recognizes drives bigger than 137Gb Support SATA up to 150MB/sec Support Windows 98SE, ME, 2000, Windows XP, Server 2003, NT 4.0 Support RAID 0, 1, 0+1 and JBOD