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How to Enable TRIM Via the OS X Terminal (Recommended) As such, TRIM support is not the trivial matter that some make it out to be (although certain manufacturers, such as Other World Computing, include firmware that eliminates the need for OS-level TRIM support).
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The TRIM command is an important disk command for SSDs that keeps your flash memory appropriately cycled so that you can achieve faster read and write speeds, as well as a longer lifespan for your SSD. Here’s how to enable TRIM across the board: What is TRIM? This support continues on in Mac OS X Lion, as well as Mountain Lion, and even OS X Mavericks, but as many have noted, it only seems to work for Apple SSDs.
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Ever since the release of OS X 10.6.8, Apple has been selectively enabling the TRIM command for SSDs in OS X.
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