+ 1 for this one. I got it after Black Friday for $45. Tested fine and no problems in my MBP 2011. The thing you have to realise too is that you don't have to get Mac memory. That's typically overpriced and is identical to normal laptop RAM....only with the word MAC on it. Usually, any laptop memory will do as long as it meets the specs outlined (use the Mac memory one you linked to as a template).