iMac 21 1/2 inch 2.8GHz Dual-Core Intel Core i5 1TB Late 2015 MK442LL/A Grade (C)

21.5-inch (diagonal) LED-backlit display with IPS technology

1920‑by‑1080 resolution with support for millions of colors

1.6GHz

• 1.6GHz dual‑core Intel Core i5 (Turbo Boost up to 2.7GHz)

2.8GHz

• 2.8GHz quad‑core Intel Core i5 (Turbo Boost up to 3.3GHz)

8GB of 1867MHz LPDDR3 onboard memory

• Configurable to 16GB

1.6GHz

• 1TB (5400-rpm) hard drive

• Configurable up to 1TB Fusion Drive or 256GB of flash storage (SSD)

2.8GHz

• 1TB (5400-rpm) hard drive

• Configurable up to 2TB Fusion Drive or 256GB of flash storage (SSD)

1.6GHz

• Intel HD Graphics 6000

2.8GHz

• Intel Iris Pro Graphics 6200

1.6GHz

• FaceTime HD camera

• Simultaneously supports full native resolution on the built-in display and up to 3840 by 2160 pixels on an external display

• Support for extended desktop and video mirroring modes

2.8GHz

• FaceTime HD camera

• Simultaneously supports full native resolution on the built-in display and up to 4096 by 2304 pixels on an external display

• Support for extended desktop and video mirroring modes

Stereo speakers

Dual microphones

3.5 mm headphone jack

• Headphone/optical digital audio output (minijack)

• 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 2 ports

• Mini DisplayPort output

• Support for HDMI, DVI, VGA, and dual-link DVI (adapters sold separately)

10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)

Kensington lock slot

Magic Keyboard

• The redesigned 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 an improved scissor mechanism, optimized key travel, and a lower profile that increase control and comfort. And it pairs immediately with your iMac right out of the box.

Magic Mouse 2

• The new design of Magic Mouse 2 lets it glide more 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. So if you prefer to use a wireless mouse but want some of the benefits of Multi-Touch, Magic Mouse 2 is a great choice.

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 new design, along with a lower profile, makes it even more comfortable to use.

Wi-Fi

• 802.11ac Wi-Fi wireless networking

• IEEE 802.11a/b/g/n compatible

Bluetooth

• Bluetooth 4.0 wireless technology

21.5-inch iMac

• 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 (5.68 kg)²

21.5-inch iMac with built-in VESA adapter

• Height: 15.7 inches (37.9 cm)

• Width: 20.8 inches (52.8 cm)

• Depth (including built-in VESA adapter): 2.6 inches (6.6 cm)

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