Originally released December 2017:

27-inch (diagonal) Retina 5K display; 5120-by-2880 resolution with support for one billion colors

128GB of 2666MHz DDR4 ECC memory

1TB SSD storage1

1080p FaceTime HD camera

Radeon Pro Vega 64 graphics processor with 16GB of HBM2 memory

Processor

2.5GHz 14-core Intel Xeon W processor, Turbo Boost up to 4.3GHz, 33.25MB cache

Memory

128GB 2666MHz DDR4 ECC memory

Storage

1TB SSD storage1

Graphics

Radeon Pro Vega 64 graphics processor with 16GB of HBM2 memory

Video Support and Camera

1080p FaceTime HD camera

Thunderbolt 3 digital video output

Native DisplayPort output over USB‑C

Thunderbolt 2, HDMI, DVI, and VGA output supported using adapters (sold separately)

Input/Output

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 3 ports

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

DisplayPort 1.2

Thunderbolt (up to 40 Gbps)

USB 3.1 Gen 2 (up to 10 Gbps)

Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)

Audio

Stereo speakers

Four microphones

3.5 mm headphone jack

Wireless

802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Bluetooth 4.2 wireless technology

Size and Weight

Height: 20.3 inch (51.6 cm)

Width: 25.6 inches (65 cm)

Depth: 8 inches (20.3 cm) with stand

Weight: 21.5 pounds (9.7 kg)2