Dock your 2.5in or 3.5in SATA Hard Drive over USB (Universal Serial Bus) 3.0 or e SATA, with the added benefit of a built-in Cooling Fan Built-in, variable speed 80mm cooling fan keeps the hard drive running cool in almost any condition e SATA & Super Speed USB (Universal Serial Bus) 3.0 provides data transfer rates up to 3 Gbps & 5 Gbps respectively while still being backwards compatible with USB (Universal Serial Bus) 2.0 Backed by a Star Tech.com 2-year warranty & free lifetime technical support The SATDOCKU3SEF Hard Drive Docking Station (e SATA/USB 3.0 to SATA) delivers quick & easy access to a 2.5in or 3.5in SATA hard disk drive (HDD) or solid state drive (SSD) through either e SATA or USB (Universal Serial Bus) connectivity, making it compatible with almost any system. Large capacity drives (tested with up to 4TB 3.5" & 1TB 2.5" drives) can be used to greatly enhance your computer''s storage/backup capabilities. The docking station features a built-in 80mm cooling fan that provides increased reliability & lifespan to HDDs by keeping the drives cooler. The variable fan speed control allows for on-the-fly adjustments for any type of HDD, or to balance cooling with noise. The HDD dock will also power down SATA drives after a period of inactivity (USB mode only) or when the PC is turned off, to help reduce power consumption & noise when not being accessed. The docking station supports full e SATA data transfer rates of up to 3 Gbps, & USB (Universal Serial Bus) 3.0 transfer rates up to 5 Gbps while backward compatible with USB (Universal Serial Bus) 2.0 system transfer rates of up to 480 Mbps. For an even more versatile storage solution, this e SATA/USB 3.0 HDD docking station can be used with our SATA to IDE hard drive adapter (SAT2IDEADP) enabling you to use 2.5in or 3.5in IDE hard drives with the dock. WhatÂ’s in the box SATA Hard Drive Dock USB (Universal Serial Bus) 3.0 Cable e SATA Cable Power Adapter Instruction Manual