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iMac 27-inch

iMachines > iMac 27-inch
Technical Specifications
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

3.0GHz

3.0GHz 6‑core Intel Core i5 (Turbo Boost up to 4.1GHz)

3.1GHz

3.1GHz 6‑core Intel Core i5 (Turbo Boost up to 4.3GHz)

Configurable to 3.6GHz 8-core Intel Core i9 (Turbo Boost up to 5.0GHz)

3.7GHz

3.7GHz 6‑core Intel Core i5 (Turbo Boost up to 4.6GHz)

Configurable to 3.6GHz 8-core Intel Core i9 (Turbo Boost up to 5.0GHz)

Memory

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Configurable to 16GB or 32GB

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Configurable to 16GB, 32GB, or 64GB

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible

Configurable to 16GB, 32GB, or 64GB

Storage1

1TB

1TB Fusion Drive

Configurable to 2TB Fusion Drive or 256GB, 512GB, or 1TB SSD

1TB

1TB Fusion Drive

Configurable to 2TB or 3TB Fusion Drive or 256GB, 512GB, or 1TB SSD

2TB

2TB Fusion Drive

Configurable to 3TB Fusion Drive or 512GB, 1TB, or 2TB SSD

Graphics

Radeon Pro 570X with 4GB of GDDR5 memory

Radeon Pro 575X with 4GB of GDDR5 memory

Radeon Pro 580X with 8GB of GDDR5 memory

Configurable to Radeon Pro Vega 48 with 8GB of HBM2 memory

 

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

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 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 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. 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 (9.42 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

 

Limited Warranty and Service

Your iMac comes with 90 days of complimentary technical support and a one-year limited warranty. Purchase AppleCare+ for Mac to extend your coverage to three years from your AppleCare+ purchase date and add up to two incidents of accidental damage coverage, each subject to a service fee of $99 for screen damage or external enclosure damage, or $299 for other repairable damage, plus applicable tax.

In The Box

iMac with Retina 5K display

Magic Keyboard

Magic Mouse 2

Power cord

Lightning to USB Cable

 

Operating System

macOS

macOS is the operating system that powers every Mac. macOS Catalina gives you more of everything you love about Mac. So you can take everything you do above and beyond.

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.