StarTech PEXM2SAT3422 M.2 SATA (NGFF) SATA 1 - PCI Express x4 Male 2x M.2 NGFF SSD RAID Controller Card plus 2x SATA III Ports - PCIe Internal Connectors: 2 - M.2 (NGFF; B-Key) Receptacle 2 - SATA (7 pin; Data) Plug 1 - SP4 (4 pin; Small Drive Power) Male Transfer Rate: Serial ATA 3.0 specification - SATA I/II/III (1.5/3/6Gbps) RAID: JBOD - (Just a Bunch of Disks) RAID 1 (Mirrored Disks) RAID 0 (Striped Disks) RAID 10 (1+0; Striped set of Mirrored Subset) Dimensions: 4.70 x 0.80 x 7.10 Operating Systems Supported: Windows 10 (32-bit or 64-bit), 8 / 8.1 (32-bit or 64-bit), 7 (32-bit or 64-bit) Windows Server 2012, 2008 R2 Mac OS 10.8 and later (tested up to 10.11) Linux 3.5 Windows Vista: 0.15 lb. Package Contents: 1 - M.2 SSD RAID controller card 1 - low-profile bracket 2 - M.2 mounting screws 1 - quick-start guide