Review on Performance Upgrade: A-Tech Apple 2GB Module PC2-6400 800MHz RAM for iMac & MacBook Mid 2009/Early 2008 by Chip Palmer

I installed it very easily. I have a white 2009 MacBook. First I removed the battery, unscrewed and removed the metal strip surrounding the battery, pulled out the old ram cards and put in the new ones. Then put on the metal strip, insert the battery and turn on the device. The whole thing took 5 minutes. The computer read it and seems to be working fine. looks good to me This will be the last purchase I will make for this 2009 unit as it is unsupported but before I put it together I needed it to last a little longer.