Late 2013 27' iMac Core i7.  Looks brand new condition, all functions are perfect.  Better than expected:  came with 16 GB ram (not 8 GB) in 2x8GB SODIMM leaving 2 slots empty for easy upgrade by buying only 2 rather than 4 more modules.  HD is actually a 1.12 TB Fusion drive.  It has 2 GB video card.  Supplied keyboard is wired, but it is an Apple extended keyboard with the attached number pad.  Mouse was a wired HP usb mouse, which I replaced with my existing Apple wireless Magic Mouse and Apple wireless track pad.  Display is pre-retina, which still looks great, and I actually prefer as some Retina Displays may develop pink edges which Apple does not cover under warranty. Have not needed any tech support.  Smooth migration using Time Capsule.  Very pleased with this purchase!