TRIM is a command that will help optimize Mac OS X’s utilization of Solid State Drives used in the latest revision of Macbook Air as well as other Macs using a SSD.
This feature will be incorporated into Mac OS 10.7, but the TRIM enabler utility will allow you to utilize it in Snow Leopard.
As indicated by the Lifehacker article:
Before you download this, you’ll want to make sure of two things:
Make sure your drive supports TRIM in the first place. Just Google your drive’s model number, and it should be pretty easy to find out if it does. If it doesn’t, you don’t want to use this patch.
Make sure you’ve updated to 10.6.7. This won’t work on 10.6.6 or before.
Remember, always have a backup handy since this wil be modifying system files and wouldn’t want anything to happen to your files.
Source: Lifehacker and @navidrockni
