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8GB / 256GB SSD / 2.3 Ghz Intel Core i5
Apple Refurbished Factory Sealed
Apple 1 Year Limited Warranty
Awesome for a student!
Mac OS X Support for SSD TRIM
TRIM is a solid state drive (SSD) feature that turns marginal designs into usable drives. In essence, it’s a command that tells a drive “clean up your internal mess”.
With the 2011 MacBook Pro, the Apple System Profiler has no inserted a TRIM Support line in its drive features list (see below).
A line of text indicating that TRIM support is present has nothing to do with whether the OS supports using TRIM, which remains an open question. And a well designed drive doesn’t need TRIM, more on that below.
It’s quite possible that Apple has intentionally restricted TRIM support (whatever that actually means in OS X) to Apple brand solid state drives. Whether other brands will be supported is very much an open question.
Curiously, Apple’s Disk Utility makes no mention of TRIM in Mac OS X 10.6.6, on the same system:
TRIM vs solid design
Why would you want an SSD that cannot work reliably (maintain its performance) without regular tune-ups? To get a fast drive (to save yourself time) so that you can waste your time maintaining it? It’s self-defeating.
The Mercury Extreme Pro (RE or non-RE) SSDs have not let me down in nearly a year of use, including a 3-way RAID-0 stripe (a much more punishing usage than a single SSD), and multiple other single SSD drives. No maintenance, no wasted time, which is exactly how it should be. I am not interested in science fair designs.
Note that while the OWC Mercury Extreme Pro drives do have TRIM support (but don’t need it to be used), the Apple System Profiler doesn’t work correctly, saying "No" for TRIM Support. That is a bug in the Apple System Profiler.
High capacity, high-performance fault-tolerant storage for photography and video.
Non-RAID or RAID-0/1/4/5/10.
Capacities up to 84 Terabytes!