Operating System: macOS Chipset: N/A Processors: Intel 8th Generation i7 Memory Support: DDR4 2400MHz or 2666MHz, Up to 32GB Display: Retina 4K display, 21.5-inch, 500 nits brightness, Wide color (P3) Resolution: 4096 x 2304 pixels Hard Drive: SSD Removable Media: N/A Graphics: Radeon Pro 555X or Radeon Pro 560X Audio: N/A Communications: 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) I/O Ports: Four USB-A, Two Thunderbolt 3 (USB-C), SDXC card slot, jack, Kensington lock slot Power: N/A Dimensions: 45 x 52.8 x 17.5 cm Weight: 5.48 kg