Simultaneously supports full native resolution on the built-in display at 1 billion colors and:

Two 5120‑by‑2880 (5K) external displays at 60Hz with support for 1 billion colors, or

Four 3840-by-2160 (4K UHD) external displays at 60Hz with support for 1 billion colors, or

Four 4096‑by‑2304 (4K) external displays at 60Hz with support for millions of colors

Support for extended desktop and video mirroring modes

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

Four microphones

3.5 mm headphone jack

Support for “Hey Siri”

Connections and Expansion

Nbase-T Ethernet with support for 1Gb, 2.5Gb, 5Gb, and 10Gb Ethernet using RJ‑45 connector

SDXC card slot with support for UHS‑II

Four USB-A ports

Four Thunderbolt 3 (USB-C) ports with support for:

DisplayPort 1.2

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)

Input
US Qwerty Space Gray Magic Keyboard with Numeric Keypad

Space Gray Magic Mouse 2

Wireless
Wi-Fi

802.11ac Wi-Fi wireless networking

IEEE 802.11a/b/g/n compatible

Bluetooth

Bluetooth 5.0 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: 21.5 pounds (9.7 kg)