This HDD Dock provides fast, convenient access to 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. Support maximum 2TB HDD hard disk. Support USB1.1, USB2.0, SATAI, SATA II and ESATA Interface.
Other Thoughts:I found actual speed of transfering data with this device mainly depends on SATA drives. With my existing SATA drives (mostly WD), its usual transfer rate range is 30MB-60MB/s but one of my old SATA drive hit 1MB-10MB/s. Still nothing else can beat this kind of speed for backup. Drive copy has never been this easy. 1TB hard disk copy was done over night. With this speed, I don't really worry about frequent backup much.
Other Thoughts:I love this thing! If you have Dual SATA on your computer, you can map both slots, other wise you might want to use USB and take the speed hit. If you do use SATA don't think its like USB and instantly remove your SATA drives (if you like your data).