Apple iMac

iMac (21.5-inch, 2017) - Technical Specifications Display 21.5-inch (diagonal) LED-backlit display 1920‑by‑1080 resolution with support for millions of colors Processor 2.3GHz 2.3GHz dual‑core Intel Core i5, Turbo Boost up to 3.6GHz Memory 2.3GHz 8GB of 2133MHz DDR4 memory Configurable to 16GB Storage1 1TB (5400-rpm) hard drive Configurable to 1TB Fusion Drive or 256GB SSD Graphics Intel Iris Plus Graphics 640 Video Support and Camera FaceTime HD camera Simultaneously supports full native resolution on the built-in display at millions of colors and: One 5120‑by‑2880 (5K) external display at 60Hz with support for 1 billion colors, or Two 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or Two 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors Thunderbolt 3 digital video output Native DisplayPort output over USB‑C Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately) Audio Stereo speakers Microphone 3.5 mm headphone jack Support for Apple iPhone headset with microphone Connections and Expansion 3.5 mm headphone jack SDXC card slot Four USB-A ports Two Thunderbolt 3 (USB-C) ports with support for: DisplayPort Thunderbolt (up to 40Gb/s) USB 3.1 Gen 2 (up to 10Gb/s) Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately) 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) Kensington lock slot Input Magic Keyboard Magic Mouse Configurable with Magic Keyboard with Numeric Keypad Configurable with Magic Trackpad Wireless Wi-Fi 802.11ac Wi-Fi wireless networking IEEE 802.11a/b/g/n compatible Bluetooth Bluetooth 4.2 wireless technology Size and Weight Height: 17.7 inches (45.0 cm) Width: 20.8 inches (52.8 cm) Stand depth: 6.9 inches (17.5 cm) Weight: 12.0 pounds (5.44 kg)2 Electrical and Operating Requirements Line voltage: 100–240V AC Frequency: 50Hz to 60Hz, single phase Operating temperature: 50° to 95° F (10° to 35° C) Relative humidity: 5% to 90% noncondensing Operating altitude: tested up to 16,400 feet (5000 meters) Operating System macOS macOS is the most advanced desktop operating system in the world. macOS Big Sur introduces a bold new design and major updates to apps — taking macOS to a new level of power and beauty.