Late 2011 - MacBookPro8,1

Compatible Upgrade for: MacBookPro8,1 - A1278 - EMC 2555   Late 2011  13-inch 
  How to find Model ID   Installation videos
Standard Memory: 4 GB
Maximum Memory 16 GB
Note: 4 GB of RAM is installed as two 2 GB modules, no slots free.
The following items are also compatible with this product...............................
External Hard Drives Battery SSD Storage Cards
Privacy Preferences