Hi everyone, I'm with some difficulties to make a decision and would like your help to make it. Like I describe in the title of the topic I have a Macbook Pro 7.1, that supports only SATA 2, and I purchase a Crucial V4 256Gb. The thing is, I read some reviews and it seems this SSD have a poor performace. What I want to ask is if I should consider return this SSD and choose another? If a choose a SATA 3 SSD, that have more recent controllers, I'll see a significant performance boost or not? If that is the case what are my choises? I also read that the sandforce controller is not working well in my Macbook Pro version, is that true? Thanks for your help.