Definition: Given an Amazon customer review, write a title for the review. The preferred titles are under fifteen words.
Input: Installed this 16GB RAM upgrade on my MacBook Pro 13\\" late 2011 model and it worked and continues to work perfectly without any problems. The MAC OS X Lion operating system recognizes the memory without any problems and I have not had any problems overall either. The log in is super lightning fast now also. Very recommended upgrade.

Excellent RAM upgrade for my Macbook Pro late 2011 13"