Aleratec sells this under their brand also, but they do not include the nice short IDE & power cables

:To use duplicator function both drives must be EXACTLY equal or it failsNot easy to get out of duplicator mode except by powering off and back onNo error recovery, if it fails, you must power cyclemust power cycle to do multiple image copies of a drive, cant simply reset and hit start

Do not loose the power supply its a real pain to replace it.

Item was DOA, Appears to be defective power adapter, no 12 vdc

I wouldn't recommend hot swapping the drives, it loses power and shuts down and then powers up again.