Apple 15.4" MacBook Pro (with Retina display) quad-core Intel Core i7 2.7GHz, 16GB RAM, 768GB flash storage, Intel HD Graphics 4000, Mac OS X Lion
This Apple computer has been upgraded over the base Apple model by Apple in their factory. As a result, it comes with the standard Apple computer warranty. The base Apple computer model of this is an upgraded model was built upon was MC976LL/A.The Apple upgrade specific to this model are: Processor upgraded from Intel core i7 Quad-core 2.60 Ghz to Intel core i7 Quad-core 2.70 GhzRAM upgraded from 8 GB to 16 GBHard Drive upgraded from 512 GB flash storage to 768 GB flash storage