Summary: I bought the 256GB version of this drive to replace the 250GB HDD in my mid-2010 MacBook Pro running Mountain Lion. I contacted Kingston who told me it had reasonable not aggressive Garbage Collection and would be suitable for my Mac OS (where TRIM officially can't be enable for non-Apple SSDs). As somebody else wrote on here, in the Mac it was ridiculously slow.
When it works, great, but really serious issues lurk
Adrian Leonard Matthews "gerrards", Amazon
24 May 2012
Summary: I did what you should never do. I bought on specs and price only. A bit of research might have made me think twice, since far too many people seem to have had issues with this drive, particularly, from what I can tell, with Intel chipsets. I first tried this unit in my Toshiba Satellite dual core Pentium laptop, and I must say it was both flawless and breathtakingly fast.