This dual drive SATA HDD Dock provides fast, convenient access to 2.5” or 3.5" SATA (SATA, SATA II, SATA III) hard drives (HDD) or solid state drives (SSD) through either USB or eSATA, without ever having to open a computer case or mount hard drives in an enclosure. Supporting one or two drives (tested with up to 4TB 3.5" and 1TB 2.5" drives per bay), SATADOCK22UE can be connected to the host computer through either USB 2.0 or eSATA - then, it''s just a matter of inserting the desired 2.5" or 3.5" SATA drives (or combination of both) into one of the two (or both) docking station slots for instant access. "...the SATADOCK22UE is at the top of [the] heap when considering construction quality, ease of use and performance. Final Score: 9.0 out of 10."— BenchmarkReviews.comThe docking station supports plug and play installation on most operating systems, making it a perfect solution for data recovery, drive imaging, software testing, or any environment that requires fast access to massive amounts of data (uninstalled or archived hard drives etc.). Plus, SATADOCK22UE features a small form factor design that requires minimal desk space for permanent connection to the host computer and provides enough hard drive surface exposure to optimize dissipation of operating heat. SATADOCK22UE supports any 2.5" or 3.5" SATA drive and data transfer speeds of up to 1.5 Gbps (using eSATA) and 480Mbps (using USB 2.0) between host and dock - ensuring effortless data dumps or backups and hassle-free file transfers. The inclusion of a high-output power adapter versus other competitive dual drive dock models ensures stable performance for even the latest power hungry high-capacity hard drives. The value of this hard drive docking station can be extended, using a SATA to IDE hard drive adapter (SAT2IDEADP), which enables you to use any 2.5 or 3.5in IDE hard drive in a SATA hard drive dock slot.