Features: 1.Compatibility: This dual bay SATA hard drive RAID enclosure supports 2.5 inch 7?9.5mm SATA HDD and SSD. (NOTE: additional power is required when using this enclosure, a Micro USB to DC power cable is included.) 2.USB 3.1 10Gbps Transfer Speed: The 2.5 inch SATA SSD HDD RAID enclosure equips with AM1352 chip and USB 3.1 output interface, the transfer speed can reach 10Gbps when using device with for Windows 8.1 and above operating system and UASP USB Protocol. 3.4 RAID Modes: Support 4 RAID mode: NORMAL (PM), RAID 0 (FAST), RAID 1 (Mirror/SAFE), LARGE (Large Capacity), with this dual bay RAID enclosure you can easily switch disks by RAID mode switch. 4.12TB Capacity: Each bay supports 6TB expansion, maximum 12TB capacity in total. Note: The product is a hard disk enclosure only and does not include a mechanical hard disk or solid state drive! 5.High Performance: 10mins auto sleep, tool free installation, hot swapping, plug and play, independent power cable. Aluminum alloy casing with front cooling holes enhances air circulation and heat removal, creating a more comfortable environment for the hard drive. specification:Item Type: Dual Bay External Hard Drive Enclosure Material: Aluminum Alloy, ABS Color: Black Function: Hard Disk Reading and Writing Support Hard Disk: 2.5 inch 7?9.5mm Thickness Hard Disk SATA Serial Mechanical Hard Disk and SSD Solid State Drive x 2 (not Included) Support Hard Disk Capacity: Single Disk Support 6TB Hard Disk, Dual Disk Can Support 12TB Mobile Storage (not Included) Hard Disk Interface: SATA Interface (serial Port) Computer Interface: USB A (USB3.0), USB C (USB3.1) Array Mode: RAID 0, RAID1, LARGE, Normal Operating System: for Windows, for OS X, for Linux PackageList: 1 x HardDiskCase 1 x PowerCable 1 x USBtoUSBCCable 1 x USBCtoUSBCCable 2 x LabelStickers 2 x Screwdriver 4 x Screws 1 x InstructionManual