Plugable Storage System Dual 2.5" SATA II Hard Drive Docking Station with Built-in Standalone Drive Clone Duplication (JMicron JMS551 Dual SATA II to USB Chipset) The Plugable Storage System is a unique integrated component set that allows 2.5" drives to be conveniently enclosed and used interchangeably between all three of the Plugable Storage System docking station variants. Drives are housed in protective cases for safe storage and easy transport. Variations of the "PSS" include the PSS-DD1 (*you are currently viewing this product*) a dual drive SATA dock with standalone drive clone duplication. The PSS-SDH1 is a single drive SATA dock and 3-port USB 3.0 hub combination. The PSS-SDC1 is a single SATA dock and dedicated 3-port USB charger. Extra drive cases are also sold separately (PSS-CASE2) to allow an unlimited number of drives to be shared and safely transported between locations. The cases are padded internally to cushion drives and include a cover that protects the SATA connector when the drive is not in use. The system requires no tools for drive installation. Docking station connects via USB 3.0 SuperSpeed 5Gbps (640MBps), up to 10x as fast as USB 2.0. Take advantage of fast Serial ATA II drives and USB 3.0 bandwidth for fast storage backups. Supports all 2.5 inch (up to 9mm thick, 12mm without PSS case) SATA I, II, and III (at SATA II 3Gbps speeds) hard drives, solid state drives, and hybrid drives. Allows access up to two drives simultaneously (note that plugging or unplugging one drive interrupts transfers on the other). Allows for easy duplication of any 2.5" SATA drive without the need for a computer to be attached. Includes robust 30W 12V 2.5A AC power adapter. Dock will work connected to any USB port. AC adapter required for operation. (US AC Wall Outlet Plug, 100-240V 50/60Hz)