The SDOCK2U33 Dual 2535" SATA hard drive docking station lets you dock & swap drives from your desktop or laptop computer simultaneously using a single USB (Universal Serial Bus) port Enhanced with UASP (USB Attached SCSI Protocol) this hard drive docking station lets you get the most out of the fastest drive technologies such as SATA III (6 Gbps) solid state drives (SSD) & hybrid drives with performance up to 70 faster than conventional USB (Universal Serial Bus) 30 when paired with a UASP-enabled host controller See our UASP testing results below for further details The hard drive dock features independent power buttons for each individual drive ensuring you can operate each hard drive separately This gives you the freedom to hot-swap one drive while transferring data to another saving you time Extend the value of this hard drive docking station further with the addition of our SATA to IDE Hard Drive Adapter (SAT2IDEADP) allowing easy insertion of any 25 or 35in IDE hard drive into a SATA hard drive dock To ensure compatibility with your computer system the SDOCK2U33 supports all of the leading operating systems including Microsoft Windows (87 Vista XPServer 2008 Server 2003) Apple OSX (109108107106) Linux & Google Chrome OS SDOCK2U33 is backed by a Star Tech 2-year warranty & free lifetime technical support enhanced Performance with UASP UASP is supported in Windows 8 Mac OSX (108 or above) & Linux In testing UASP performs with a 70 faster read speed & 40 faster write speed over traditional USB (Universal Serial Bus) 30 at peak performance At the same peak in testing UASP also shows an 80 reduction in required processor resources Testing results were obtained using an Intel Ivy Bridge system a UASP-enabled Star Tech Enclosure & a SATA III solid state drive Box Contains 1-USB 30 to Dual 2535in SATA hard drive docking station 1-3ft (1m) USB (Universal Serial Bus) 30 Cable 1-Universal Power Adapter (NAUKEU) 1-Instruction Manual