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 & 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 1.5 Gigabits/sec while the card can be configured for RAID levels 0, 1 & 0+1.