I just got a new 5K iMac, and I ordered it with just an internal SSD planning on using external storage for bulk-data needs. I have a thunderbolt RAID array for "big data" storage, but I also wanted a smaller single-drive box that's quieter and uses less power for "everyday"/server stuff (the iMac is now my home server, too) so that I can just leave it on all the time. Since there really aren't any reasonably-priced Thunderbolt cases available, and USB3 is plenty fast for a single spinning drive, I figured a simple USB3 case is the way to go. I already have on hand a current-generation Newer Ministack (the thin black-topped ones), which includes a USB3 port. Perfect. Except having tried to use it, it keeps flaking out after a few hours/days. It will either drop out temporarily, or, worst case, once completely seize up and require turning it off and doing some kind of additional voodoo (never did figure out what exactly I did that revived it) to get it to work again. It could be a hardware problem--I had had some issues like this before trying to use it as an eSATA case with a Mini server--but in any case it's out of warranty, I didn't have good luck with an earlier-generation Ministack (should have learned my lesson) and if it did break I certainly don't want to buy another one. Which leaves me looking for a decent USB3 3.5" case that I can actually leave on constantly without fear of it hanging up randomly, a problem that trolling around reveals is somewhat common. (Incidentally, I have a Seagate external that I got a USB3 base for, and that works reliably, on a hub even, aside from the Seagate drive's annoying tendency to do the scratchy head-park noise somewhat at random.) I already have a drive: HGST 4TB NAS drive. Don't technically need a case that will support more than 4TB, but it would be nice to be able to upgrade some day. A fan would be nice, since the drive will get pretty heavy use, but isn't vital. The ones I've come up with so far are: Icy Dock Blizzard - A bit expensive, physically large, but has a big, theoretically quiet fan. Transcend StoreJet 35U3 - Reasonably priced for a case with a fan, recognizable company, but kind of ugly and might be noisy? Macally G-S350SU3 - Very nice looking, I had good luck with a similar Firewire case from them at work, but no fan or heatsink other than the metal case. Akitio SK-3501 - Dirt cheap (~$26) despite the high MSRP, and has a big heatsink on the bottom. ...but the real question is, are any of them reliable? Does anyone own any of these? If so, have you had any problems with it dropping out when connected/powered on for a long period of time? Any alternate suggestions that aren't wallet-murdering?