A-Tech 8GB (2x4GB) RAM for Apple MacBook Pro (Early/Late 2011), iMac (Mid 2010, Mid 2011, Late 2011), Mac Mini (Mid 2011) | DDR3 1333MHz PC3-10600 204-Pin SODIMM Memory Upgrade Kit at Amazon.com
Memory Upgrades for Apple iMac 2011 Up to 32GB
Apple iMac Mid 2011 Price in Pakistan – Used All-in-One Core i5 8 GB RAM 500 GB HDD 1 GB Graphic Card 27″ and 15 Days Warranty - IT International