Display

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

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

Processor

2.7GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.2GHz) with 6MB L3 cache

RAM

16GB of 1600MHz DDR3 memory

Hard Drive

1TB SSD storage

Graphics Coprocessor

NVIDIA GeForce GT 640M graphics processor with 512MB of GDDR5 memory

Wireless Type

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

Connections

• SDXC card slot
• Four USB 3 ports
• Two Thunderbolt ports
• Mini DisplayPort output with support for DVI, VGA, and dual-link DVI (adapters sold separately)
• 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)

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 and up to a 30-inch display (2560 by 1600 pixels) on an external display
• Support for extended desktop and video mirroring modes