Review on 💾 16GB A-Tech RAM Upgrade Kit for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010 27 inch 4-Core, Mid 2011 21.5/27 inch), Mac Mini (Mid 2011) - DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory by Riley Skeet

I bought this RAM because it was cheaper than Crucial. After using my MacBook Pro for a week in early 2011, apps would crash and the laptop would keep restarting. I thought it was a software problem. I uninstalled all installed apps and only kept the Apple apps that came with OS-X. I have the same problem. I put the old ram back in and everything was fixed. I wasted my time! I'm not worried about money because I created a return ticket, but I really wanted this MacBook to be made before Christmas. I think it's a good lesson not to buy things because they're cheaper.