I liberated a mSATA SSD from a dead PC once, and along with a cheap mSATA to USB enclosure it has become my drive of choice when backing up customers' computers prior to a migration to a new PC.
There has always been a niggling issue with it in that the enclosure is metal and the drive rattles around inside it.  Occasionally I get transfer throughput issues with it and/or event log disk errors, and I've attributed these to maybe the drive making contact with the metal enclosure causing grounding problems.  It rarely happens so I haven't put much effort into fixing it, but I decided the other day that perhaps a bit of electrical insulation tape in a few key places inside the enclosure should stop the rattle.
When I opened the other end (not the USB end) of the enclosure, I noticed a bit of cushioning material, and I wondered whether maybe the lid at that end was oriented the wrong way around, tried it, sure enough no more rattle.
In my defence, IIRC when I was originally putting the drive in the enclosure I think the USB end was very particular about which way it would screw in properly, so I think I might have assumed that the other end was similarly picky and so when it screwed in properly first time I guessed it was the right way around?
Still, it was embarrassing.