Product Line
Mac Model

Retina 4K display 21.5-inch (diagonal) Retina 4K display      4096-by-2304 resolution with support for one billion colors      500 nits brightness Wide color (P3)

3.0GHz quad‑core Intel Core i5 (Turbo Boost up to 3.5GHz)
8GB of 2400MHz DDR4 onboard memory
1TB (5400-rpm) hard drive
Size And Weight

Height: 45.0 cm Width: 52.8 cm Stand depth: 17.5 cm                Weight: 5.66 kg

Radeon Pro 555 with 2GB of VRAM
Video Support And Camera

FaceTime HD camera


Simultaneously supports full native resolution on the built-in display at millions of colors (21.5-inch) or 1 billion colors (21.5-inch 4K) 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)


Wi-Fi   802.11ac Wi-Fi wireless networking IEEE 802.11a/b/g/n compatible


Bluetooth  Bluetooth 4.2 wireless technology

Connections And Expansion

3.5 mm headphone jack SDXC card slot                   Four USB 3 ports (compatible with USB 2)              Two Thunderbolt 3 (USB-C) ports with support for: DisplayPort Thunderbolt (up to 40 Gbps)          USB 3.1 Gen 2 (up to 10 Gbps) Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately) 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector) Kensington lock slot



Stereo speakers Microphone 3.5 mm headphone jack    Support for Apple iPhone headset with microphone

In The Box


21.5‑inch iMac with Retina 4K display Magic Keyboard Magic Mouse 2 Power cord Lightning to USB Cable