Display

• Retina 4K display

• 21.5-inch (diagonal) Retina 4K display

• 4096-by-2304 resolution with support for one billion colors

• 500 nits brightness

• Wide color (P3)

Processor

• • 3.0GHz 6-core Intel Core i5 (Turbo Boost up to 4.1GHz)

  • Configurable to 3.2GHz 6-core Intel Core i7, Turbo Boost up to 4.6GHz

Memory

3.0GHz

16GB

Storage¹

• 3.6GHz

  • 512GB SSD

  • Configurable to 1TB Fusion DriveGraphics

• 3.6GHz

  • Radeon Pro 555X with 2GB of GDDR5 memory

• 3.0GHz

  • Radeon Pro 560X with 4GB of GDDR5 memory

  • Configurable to Radeon Pro Vega 20 with 4GB of HBM2 memory

Video Support and Camera

• FaceTime HD camera

• Simultaneously supports full native resolution on the built-in display at millions of colors (21.5-inch) or 1 billion colors (21.5-inch 4K) 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)

Audio

• Stereo speakers

• Microphone

• 3.5 mm headphone jack

Connections and Expansion

• 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