Mid 2011 Apple iMac 21.5" A1311 i5 2.7GHz 8GB RAM 1TB HD OSX Sierra - DCPS Computer Program
Amazon.com: Valley Of The Sun 2GB Graphics Video Card Upgrade for Apple iMac Mid-2011 27 Inch Core i5 MC814LL/A MC814 A1312 Desktop All-in-One PC, AMD Mobility Radeon HD 6970M Replacement Repair Parts :