SuperSpeed USB 3.0 eSATA Hard Drive Docking Station with Cooling Fan. The SATDOCKU3SEF Hard Drive Docking Station (eSATA/USB 3.0 to SATA) delivers quick and easy access to a 2.5in or 3.5in SATA hard disk drive (HDD) or solid state drive (SSD) through either eSATA or USB connectivity, making it compatible with almost any system. The docking station features a built-in 80mm cooling fan that provides increased reliability and 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 docking station supports full eSATA data transfer rates of up to 3 Gbps, and USB 3.0 transfer rates up to 5 Gbps while backward compatible with USB 2.0 system transfer rates of up to 480 Mbps. For an even more versatile storage solution, this eSATA/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.