Apple iMac 21.5" Mid 2011 A1311 i5 2.5GHz 12 GB Ram 2TB HD Radeon HD DVD GRADE A – I.E.T. INDUSTRIAL ANTONIO PRIETO – SINCELEJO, SUCRE
Timetec 32GB KIT(4x8GB) Compatible for Apple DDR3L 1600MHz PC3L-12800 CL11 for iMac (Mid 2011, Late 2012, Late 2013, Late 2014 Retina 5K, Mid 2015 Retina 5K) SODIMM Memory Module MAC RAM Upgrade at Amazon.com