3.4 GHz Intel Core i5 7th Gen (Turbo Boost up to 3.8 GHz) Quad Core / 27-inch (diagonal) LED-IPS Retina display 5120 x 2880 (5K) / 8GB of 1867MHz LPDDR3 SDRAM /1 TB Hybrid Fusion Drive SATA /AMD Radeon Pro 570 4GB VRAM / Weight: 9.44 kg /2 x Thunderbolt 2 / 4 x USB 3.0 / 1 x LAN (Gigabit Ethernet) /802.11a/b/g/n/ac Wireless/Bluetooth 4.2 / OS X 10.13 High Sierra  /one-year limited warranty(Apple Magic Keyboard & Apple Magic Mouse 2 Included)