Display properties:
27-inch (diagonal) Retina 5K display
5120-by-2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)
True Tone technology
Configurable with nano-texture glass
Video & camera support:
1080p FaceTime HD camera
Simultaneously supports full native resolution on the built-in display at 1 billion colors and:
One 6016-by-3384 (6K) external display at 60Hz with support for 1 billion colors, or;
Two 6016-by-3384 (6K) external displays at 60Hz with support for 1 billion colors (requires Radeon Pro 5700 or Radeon Pro 5700 XT), or;
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)
Audio properties:
Stereo speakers
Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming
3.5mm headphone jack
Support for “Hey Siri”
32GB 2666MHz DDR4 SDRAM, upgradeable to 128GB.
There are four SO-DIMM user-accessible slots.
Video memory:
discrete AMD Radeon Pro 5300 graphics with 4GB dedicated GDDR6 video RAM.
Genuine mac OS is pre-installed.
20.3"h x 25.6"w x 8.0"d
I/O:
(1) SDXC (UHS-II) card slot
(1) 3.5mm audio (headphone)
(4) USB Type-A
(2) Thunderbolt 3 (USB Type-C)
(1) RJ-45 LAN
(1) Kensington lock slot
(1) Power in
Thunderbolt 3 (USB Type-C) ports support DisplayPort, USB 3.1 Gen2, Thunderbolt 2, HDMI, DVI, and VGA, with compatible adapters (sold separately)
RJ-45 LAN connector native speed is GbE (10/100/1000). 2.5/5/10GbE speeds are supported upon BTO configuration.
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)
