Display

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

Processor

3.0GHz quad‑core Intel Core i5 (Turbo Boost up to 3.5GHz)

Configurable to 3.6GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)

Memory

8GB of 2400MHz DDR4 memory

Configurable to 16GB

Storage¹

1TB (5400-rpm) hard drive

Configurable to 1TB Fusion Drive or 256GB or 512GB SSD

Graphics

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)

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 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

Input

• Magic Keyboard
  Magic Keyboard comes standard with your iMac. It’s wireless and rechargeable (so you won’t be replacing batteries), with an ultracompact, edge-to-edge design that wastes no surface space. It has a stable scissor mechanism, optimized key travel, and a low profile that provide control and comfort. And it pairs immediately with your iMac right out of the box.
• Magic Keyboard with Numeric Keypad
  You get all the functionality of Magic Keyboard, with an extended layout that makes it even easier to work and play. The new Magic Keyboard with Numeric Keypad includes document navigation controls — page up, page down, home, and end — and full-size arrow keys that are perfect for navigating pro apps, moving through spreadsheets, and playing games.
• Magic Mouse 2
  Magic Mouse 2 comes standard with your iMac. The design of Magic Mouse 2 lets it glide smoothly across your desk. And since it supports Multi-Touch, you can use simple gestures on its surface to do things such as swipe between web pages and scroll through documents.
• Magic Trackpad 2
  If you prefer using a trackpad, Magic Trackpad 2 gives you the full range of Multi-Touch gestures and introduces Force Touch to the desktop. Sensors underneath the trackpad surface detect subtle differences in the amount of pressure you apply, bringing more functionality to your fingertips and enabling a deeper connection to your content. This design, along with a low profile, makes it extremely comfortable to use.

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: 12.5 pounds (5.66 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 95% noncondensing
• Operating altitude: tested up to 10,000 feet

In the Box

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

Operating System

macOS High Sierra
macOS is the operating system that powers everything you do on a Mac. macOS High Sierra brings new forward-looking technologies and enhanced features to your Mac. It’s macOS at its highest level yet.
Learn more

Accessibility

Accessibility features help people with disabilities get the most out of their new iMac. With built-in support for vision, hearing, physical and motor skills, and learning and literacy, you can create and do amazing things.
Learn more

Features include:

• VoiceOver
• Zoom
• Increase Contrast
• Reduce Motion
• Siri and Dictation
• Switch Control
• Closed Captions
• Text to Speech

Built‑in Apps³

• Photos
• iMovie
• GarageBand
• Pages
• Numbers
• Keynote
• Siri
• Safari
• Mail
• FaceTime
• Messages
• Maps
• Notes
• Calendar
• Contacts
• Reminders
• Photo Booth
• Preview
• iTunes
• iBooks
• App Store
• Time Machine

Configure to Order

Configure your iMac with these options.
Looking for an iMac you can mount on a wall or an adjustable arm?

• 3.4GHz
  • Magic Trackpad 2
  • Magic Keyboard with Numeric Keypad
  • 3.6GHz quad-core Intel Core i7 upgrade
  • 16GB or 32GB memory upgrade
  • 256GB, 512GB, or 1TB SSD