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)

In the Box

• iMac

• Magic Keyboard

• Magic Mouse

• Power cord

• Lightning to USB Cable

• Polishing cloth

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.

Learn more about latest operating system

Accessibility

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

Learn more about Accessibility

Features include:

• Voice Control

• 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

• News

• Stocks

• Home

• Voice Memos

• Notes

• Calendar

• Contacts

• Reminders

• Photo Booth

• Preview

• Books

• App Store

• Time Machine

• TV

• Music

• Podcasts

• Find My

• QuickTime Player

Configure to Order

Configure your iMac with these options.

Looking for an iMac you can mount on a wall or an adjustable arm? Choose an iMac with a Built-in VESA Mount Adapter

• Magic Trackpad

• Magic Keyboard with Numeric Keypad

• 16GB memory upgrade

• 1TB Fusion Drive

• 256GB SSD

iMac and the Environment

We take responsibility for the environmental footprint of our products throughout their life cycle. Learn more about iMac and the Environment

The 21.5-inch iMac is designed with the following features to reduce its environmental impact:⁴

Smarter chemistry⁵

• Arsenic-free display glass

• Mercury-, BFR-, PVC-, and beryllium-free

Responsible packaging

• 100% of virgin wood fiber comes from responsibly managed forests

Learn more

Read the 21.5-inch iMac Environmental Report for detailed information on this product’s environmental performance.

Acoustic Performance

Declared noise emission values in accordance with ECMA-109

1. L _{W A,m} is the mean A-weighted sound power level, rounded to the nearest 0.1 B.

2. L _{p A,m} is the mean A-weighted sound pressure level measured at operator position (rounded to the nearest 1 dB).

3. 1 B (bel) = 10 dB (decibel)

4. K _v is the statistical adder for computing upper-limit of A-weighted sound power level.

5. The quantity, L _{W A,c} (formerly called L _{W Ad}) may be computed from the sum of L _{W A,m} and K _v.

6. The Wireless web test browses 25 popular websites.

7. Configuration tested: 2.3GHz dual-core Intel Core i5 processor, 8GB memory, 1TB hard drive, Intel Iris Plus Graphics 640.