Display

• 21.5-inch (diagonal) Retina 4K display with IPS technology

•4096-by-2304 resolution with support for millions of colors

Processor

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

RAM

16GB of 2133MHz DDR4 memory

Hard Drive

1TB SSD storage

Graphics Coprocessor

Intel Iris Plus Graphics 640

Wireless Type

• Wi-Fi
  802.11ac Wi-Fi wireless networking
  IEEE 802.11a/b/g/n compatible
• Bluetooth
  Bluetooth 4.2 wireless technology

Connections

• 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

Audio Support

• Stereo speakers
• Microphone
• 3.5 mm headphone jack
  • Support for Apple iPhone headset with microphone

Video Support

• 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)