Extension of RAM in A1278

I'm continues mac pro end of 2011, I have 8 GB of ram installed (1333 mhz), now I have another 4 GB 1600 mhz ram. Is it possible to add the two ram in my mac?

This model number is a MacBook Pro, which has 2 slots for RAM. If you have 8 GB installed using 2 slots, you can not add more.

Tags: Notebooks

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