Correct me if I'm wrong about the assertions I make here. I myself purchased the lesser 510-series Elm Crest -- for its speed first of all. But [and you can argue that my research was incomplete, but I don't think that's fair] -- BUT!!. . . . I also chose Intel because I was assured of TRIM support with "older OS's." I have initially built my Z68-system around VISTA-64-SP2. Supposedly, Win-7-32/64 has TRIM support "built-in." No problem: Intel provides it with SSD-Toolbox and "SSD-Optimizer." Just one hitch. If you check Intel's web-site on the Toolbox, Optimizer and TRIM, they note that [my paraphrase] "We are investigating the issue of making TRIM work with RAID configurations . . . currently, it doesn't . . . " and that's what the Toolbox and Optimizer report when you bring them up running. This suggests to me that TRIM under Windows-7 doesn't work with your SSD-caching either. Or -- just to clarify for the curious and casual reader: SSD-caching is a "RAID-0"-type configuration. So .. . "no TRIM" . . . Anyone have any thoughts and clarifications?