iMac Late 2015 Retina 4K 21.5 inch 8GB 3.1 GHz i5 Quad-Core English Keyboard * Small chip on the glass at the top right of the front of the main unit (outside the display area, so no impact on functionality) * Small dent on the frame at the bottom center of the front of the main unit * Small scratches on the front and back of the main unit * Scratches on the side of the mouse, dirt on the battery cover * A yellow vertical line appears on the left side of the screen, but it is barely visible when the screen is white and the brightness is at MAX, and is hardly noticeable on a normal screen (attached home screen). Operation is completely problem-free. Apple English keyboard (battery-powered), Magic Mouse (battery-powered), and power cable included. No box. * Model number: MK452J/A * CPU: Core i5 3.1GHz Late 2015 * Memory: 8GB * Storage: 1TB HD * Display: 21.5-inch Retina 4K Shipping included, will be shipped after factory reset. *Please check the images or model number for other details. Model name...iMac Retina 4K 21.5 inch (2015)