That's both $300 under the lowest price we've seen and at least $431 less than you'd pay for a factory sealed unit today. Buy Now at eBay Tips Sold by QuickShipElectronics via eBay. A 1-year QuickShipElectronics warranty is included. Features Intel Core i3-8100 3.6GHz Coffee Lake quad-core CPU 21.5" 4096 x 2304 (4K) IPS Retina display 8GB RAM & 1TB HDD AMD Radeon Pro 555X 2GB GPU macOS 10.14 Mojave Model: MRT32LL/A