Bus Type: 32 Bit PCI Speed: Serial ATA-150 I/O Address: \"Plug & Play\" IRQ Selection: \"Plug & Play\" Internal Connector: 4 x Serial-ATA Female Supports 4 independent Serial-ATA channels \"Plug & Play\" installation Standard and low profile PC back plates included Compatible with Windows 98SE/ME/2000/NT/XP/Vista/7 The 4 independent Serial-ATA ports each support Serial-ATA data rates of 1.5Gigabits/sec while the card can be configured for RAID levels 0, 1 and 0+1.