MacBook Pro: How to remove or install memory - Apple Support
16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
How to make your MacBook Pro faster – upgrading a MacBook Pro mid-2012 to SSD and more RAM memory - Andy the webdeveloper
Apple Macbook Pro 13 (Mid-2012) - i7-3520M · Intel HD Graphics 4000 (споделена памет) · 13.3”, HD (1280 x 800), TN · 256GB SSD · 16GB DDR3, 1600MHz · Mac OS X | LaptopMedia.com