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)

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)

3.0GHz

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

• Configurable to 16GB or 32GB

3.1GHz

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

• Configurable to 16GB, 32GB, or 64GB

3.7GHz

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

• Configurable to 16GB, 32GB, or 64GB

3.0GHz

• 1TB Fusion Drive

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

3.1GHz

• 1TB Fusion Drive

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

3.7GHz

• 2TB Fusion Drive

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

3.0GHz

• Radeon Pro 570X with 4GB of GDDR5 memory

3.1GHz

• Radeon Pro 575X with 4GB of GDDR5 memory

3.7GHz

• Radeon Pro 580X with 8GB of GDDR5 memory

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

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)

Stereo speakers

Microphone

3.5 mm headphone jack

• Support for Apple iPhone headset with microphone

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

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.

Wi-Fi

• 802.11ac Wi-Fi wireless networking

• IEEE 802.11a/b/g/n compatible

Bluetooth

• Bluetooth 4.2 wireless technology

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

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