Display

Display

21.5-inch (diagonal) LED-backlit display
1920‑by‑1080 resolution with support for millions of colors

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)

Processor

2.3GHz

2.3GHz dual‑core Intel Core i5 (Turbo Boost up to 3.6GHz)

3.0GHz

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

3.4GHz

3.4GHz quad-core Intel Core i5 (Turbo Boost up to 3.8GHz)

Memory

8GB of 2133MHz DDR4 memory

8GB of 2400MHz DDR4 memory

8GB of 2400MHz DDR4 memory

Storage1

1TB (5400-rpm) hard drive

1TB (5400-rpm) hard drive

1TB Fusion Drive

Graphics

Intel Iris Plus Graphics 640

Radeon Pro 555 with 2GB of VRAM

Radeon Pro 560 with 4GB 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 or
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
  • Dictation
  • Switch Control
  • Closed Captions
  • Text to Speech

Built‑in Apps3

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

iMac and the Environment

Apple takes a complete product life cycle approach to determining our environmental impact. Learn more

iMac is designed with the following features to reduce its environmental impact:

  • Arsenic-free display glass
  • BFR-free
  • PVC-free4
  • Beryllium-free
  • Mercury-free LED-backlit display
  • Recyclable aluminum enclosure
  • Speaker enclosures made with 60 percent post‑consumer recycled plastic
  • Fan assembly made with 26 percent bio‑based plastic
  • Meets ENERGY STAR Version 6.1 requirements
  • Rated EPEAT Gold5

Apple and the Environment

Learn more about Apple’s dedication to reducing the environmental impact of our products and process. Or read our Product Environmental Reports for detailed information on the environmental performance of every Apple product.

Recycling

Apple takes a holistic view of materials management and waste minimization. Learn more about how to recycle your Mac.

Display

Retina 5K display

27-inch (diagonal) Retina 5K display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Processor

3.4GHz

3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz)

3.5GHz

3.5GHz quad‑core Intel Core i5 (Turbo Boost up to 4.1GHz)

3.8GHz

3.8GHz quad‑core Intel Core i5 (Turbo Boost up to 4.2GHz)

Memory

8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible

8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible

8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible

Storage1

1TB Fusion Drive

1TB Fusion Drive

2TB Fusion Drive

Graphics

Radeon Pro 570 with 4GB of VRAM

Radeon Pro 575 with 4GB of VRAM

Radeon Pro 580 with 8GB of VRAM

Video Support and Camera

FaceTime HD camera

Simultaneously supports full native resolution on the built-in display at 1 billion 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 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: 20.3 inches (51.6 cm)

Width: 25.6 inches (65.0 cm)

Stand depth: 8 inches (20.3 cm)

Weight: 20.8 pounds (9.44 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 95% noncondensing

Operating altitude: tested up to 10,000 feet

In the Box

iMac with Retina 5K 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
  • Dictation
  • Switch Control
  • Closed Captions
  • Text to Speech

Built‑in Apps4

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

iMac and the Environment

Apple takes a complete product life cycle approach to determining our environmental impact. Learn more

iMac is designed with the following features to reduce its environmental impact:

  • Arsenic-free display glass
  • BFR-free
  • PVC-free5
  • Beryllium-free
  • Mercury-free LED-backlit display
  • Recyclable aluminum enclosure
  • Speaker enclosures made with 60 percent post‑consumer recycled plastic
  • Meets ENERGY STAR Version 6.1 requirements
  • Rated EPEAT Gold6

Apple and the Environment

Learn more about Apple’s dedication to reducing the environmental impact of our products and process. Or read our Product Environmental Reports for detailed information on the environmental performance of every Apple product.

Recycling

Apple takes a holistic view of materials management and waste minimization. Learn more about how to recycle your Mac.