SSD external enclosure (thunderbolt)

godlyatheist

Junior Member
Feb 12, 2007
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I bought two 1TB Crucial M550 SSD for a friend to use with his Mac/Macbook. He will be using them for portable storage so the SSDs need to go in an enclosure. My understanding is that TRIM is not supported on USB/Fireware but if Thunderbolt is used then OSX supports TRIM on it. I don't know how big of a difference in durability is with TRIM off and relying on active garbage collection instead. It's almost impossible to find a 2.5'' Thunderbolt enclosure, apparently there are licensing and certification issues. I found this:

OWC MOTGTBH5T1.0 1.0TB Mercury On-The-Go... in stock at OWC

The hard drive in there can be removed easily and I can stick the 1TB SSD in there. My only concern is compatibility. OWC also sells SSD in that enclosure but only up to 500GB, there is a power concern? The Crucial drive lists 5V 1.7A, which is 8.5W of maximum power draw. Supposedly the Thunderbolt interface can deliver up to 10W, so I don't see an issue there.

The top concerns here are the compatibility and durability. So questions are:

Has anyone tried this with the linked enclosure? On BHphoto user review I found someone using my SSD with the USB3.0 version of the enclosure and it said there was no problem.

Should I really worry about using the SSD in an USB enclosure with no TRIM?

My friend is an pro-photographer so he will be dumping loads of RAW image from shoots unto the SSD until he gets home to his main rig. He wanted SSD because the last time he dropped his hard drive after a shoot and lost everything.
 
Feb 25, 2011
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Should work fine.

But I would probably just use a USB enclosure and spent my money elsewhere. The drives have GC, and if you're not using it as active storage it's really not going to be a big deal.