Processor 3.1GHz 6?core Intel Core i5 (Turbo Boost up to 4.3GHz)RAM 8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessibleStorage 1 TB HDD Fusion DriveOS MacOSGraphics Card Radeon Pro 575X with 4GB of GDDR5 memoryDisplay 27-inch (diagonal) Retina 5K (5120x2880) displayPorts Four USB 3 ports (compatible with USB 2), SDXC card slot, Thunderbolt 3 (USB-C) ports with DisplayPort support, 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)Connectivity 802.11ac Wi-Fi wireless networking, IEEE 802.11a/b/g/n compatible, Bluetooth 4.2Dimensions (W x D x H) 65 x 20.3 x 51.6 cmProduct Weight 9.42KgIncludes Stereo speakers, Microphone, 3.5 mm headphone jack, Magic Keyboard, Magic Mouse 2, Power cord, Lightning to USB Cable