Vantec UGT-MST644R 2 x MSATA And 2 x SATA Raid Card (VANTEC ADP UGT-MST644R) - Drive Capacity: 8TB Hard Drive, Ports: 2 x mSATA 6Gb/s Ports, 2 x SATA 6Gb/s Ports (backwards compatible with SATA II/I), Bus Interface: PCI Express x2, compatible with PCI Express x4, x8 and x16 slots, System Requirements: PCI Express x4, x8 or x16 slot, Windows XP/Vista/7/8/8.1/10