iDsonix via Amazon offers Prime members the iDsonix SuperSpeed USB 3.0 to SATA Hard Drive Docking Station, model no. iDD-U3102-BK, for $19.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $9.11.) That's $30 off and the lowest total price we could find, although we saw it for a buck less last month. It supports 2.5" or 3.5" Serial ATA hard drives up to 4TB.