Apple iMac 21.5" 2.7GHz Core i5 (ME086LL/A) All In One Desktop, 8GB Memory, 1TB Hard Drive, MacOS 10.12 Sierra (Refurbished) Renewed products look and work like new. These pre-owned products have been inspected and tested by Amazon-qualified suppliers, which typically perform a full diagnostic test, replacement of any defective parts, and a thorough cleaning process. Packaging and accessories may be generic. All products on Amazon Renewed come with a minimum 90-day supplier-backed warranty. Intel Iris Pro Graphics;2.7 GHz Quad-Core Intel Core i5 Processor (Turbo Boost up to 3.2 GHz) with 6MB L3 cache 21.5-inch (Diagonal) LED-backlit Display with IPS Technology; 1920-by-1080 Resolution 1TB Hard Drive, 8 GB (Two 4 GB) of 1600MHz DDR3 Memory