Hi @ All! Thank you for your great research! I´ve got a mbp 13 mid 2009 with that .... nvidia chipset and controller. For Testing i put in a lowend sandisk ssd 128 last summer (which controller inside is nowhere to find - sandisk´s own?). In yosemite it showed 1,5 GBit firstly, after enabling trim for Non-apple ssds since yosemite 10105 it got it´s correct 3,0 Gbit fine running. Now i think about a 240gb version. In my opinion sandisk made that firmware fix only for the first "etreme" because they had exactly that bad SF2281 controller built in, see http://ssd.userbenchmark.com/Compare/Cru...-BX100-250GB-vs-SanDisk-Extreme-240GB/3145vs1328 diablote´s tests with ultraII and plus from sandisk seem to be the best solution for me - the have marvell controllers both!? On crucial side, someone tested a MX 200? http://ssd.userbenchmark.com/Compare/San...-Ultra-II-240GB-vs-Crucial-MX200-250GB/2548vs3196 but exactly the 250 version is bad?...