... x2 Interface (for Selected Models) is Compatible with PCI-Express x4, x8, and x16 slotsSupports ... Multiplier FIS Based Switching or Command Based SwitchingCompatible with SATA 6G, 3G and 1.5G Hard ... feature)Hardware RequirementComputer Motherboard with PCI-e Version 2.0 x2 Slot (This card will not fit ... Version 2, x2 Slot Controller Card,HyperDuo, Mixed array RAID, with Full and Low Profile Brackets