21.5-inch (diagonal) LED-backlit display

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

2.3GHz

• 2.3GHz dual‑core Intel Core i5, Turbo Boost up to 3.6GHz

2.3GHz

• 8GB of 2133MHz DDR4 memory

• Configurable to 16GB

1TB (5400-rpm) hard drive

• Configurable to 1TB Fusion Drive or 256GB SSD

Intel Iris Plus Graphics 640

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)

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-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

Magic Keyboard

Magic Mouse

Configurable with Magic Keyboard with Numeric Keypad

Configurable with Magic Trackpad

Wi-Fi

• 802.11ac Wi-Fi wireless networking

• IEEE 802.11a/b/g/n compatible

Bluetooth

• Bluetooth 4.2 wireless technology

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

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)