OWC (Other World Computing) is offering the HGST Touro Desk Pro 3.5″ hard drive enclosure w/ USB 3.0 cable for $1.95 + $7.84 shipping via this link and entering the following code in the search field: HIT0STOUROEXT3. This is basically an HGST Touro Desk Pro external HD with the hard drive removed and being sold as an enclosure for even lower than most cheap, no name 3.5″ HD cases. A standard, well rated 3.5″ USB 3.0 enclosure will run you anywhere from $15 to $25 or more compared to the brand name, roughly $10 price tag on today’s deal.
Technically not a pre-owned item, but there is signs of wear due to the original drive being removed. However, OWC offers full warranty coverage on the “functionality of the power supply, Cable and USB 3.0 Bridge component within the enclosure.”