Apple 21.5" iMac

Apple 21.5" iMac
  • Size (H x W x D) : 17.7 x 20.8 x 6.9 inches
  • Weight: 12.5 pounds
Vendor: Apple
Unit Cost: $1,368 (*Price subject to change due to availability)


Apple Desktop 21.5" iMac with Retina 4K display
Operating System

macOS Sierra

Display Retina 4K 4096-by-2304 P3 display
Processor 3.0GHz quad-core Intel Core i5 processor, Turbo Boost up to 3.5GHz
Graphics Radeon Pro 555 with 2GB memory
Memory 8GB 2400MHz memory

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



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)

  • Stereo speakers
  • Microphone
  •  3.5 mm headphone jack
  • Support for Apple iPhone headset with microphone
  • Magic Keyboard
  • Magic Mouse 2


Hard Drive 1TB Serial ATA Drive @ 5400 rpm
Optical Device  


Wireless Wi-Fi

802.11ac Wi-Fi wireless networking

IEEE 802.11a/b/g/n compatible

Bluetooth 4.2 wireless technology

Ethernet 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Modem No Modem


Protection AppleCare Protection Plan for iMac - Auto-enroll