Compatible Upgrade for: MacBookPro9,1 - A1286 - EMC 2556  Mid 2012 15-inch 
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Standard Memory: 4 GB
Maximum Memory 16 GB
Note: 4 GB of RAM is installed as two 2 GB modules, no slots free.
Apple officially supports a maximum of 8 GB of RAM, but third-parties have determined that this model actually is capable of using up to 16 GB of RAM with two 8 GB memory modules.
The following items are also compatible with this product...............................
External Hard Drives Battery SSD Storage Cards

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