Display

• 21.5-inch (diagonal) LED-backlit display with IPS technology; 1920-by-1080 resolution with support for millions of colors

Processor

• 2.2GHz
  2.2GHz quad-core Intel Core i5 processor 
• 
  

Memory

• 8GB (two 4GB) of 1600MHz DDR3 memory
  Configurable to 16GB.

Storage1

• 1TB (5400-rpm) hard drive
  Configurable to 1TB Fusion Drive or 256GB or 512GB of flash storage.

Graphics

• 2.7GHz
  Intel Iris Pro graphics
• 2.9GHz
  NVIDIA GeForce GT 750M graphics processor with 1GB of GDDR5 memory

Video Support and Camera

• 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
• Support for Target Display Mode via the Thunderbolt port using a Thunderbolt to Thunderbolt cable (sold separately)

Audio

• Stereo speakers
• Dual microphones
• Headphone port
  • Headphone/optical digital audio output (minijack)
  • Support for Apple iPhone headset with microphone
  • SDXC card slot
  • Four USB 3 ports (compatible with USB 2)
  • 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)
  • Kensington lock slot

  
  

  Input

  Apple Wireless Keyboard
  Full-size keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement)

  Magic Mouse
  Smooth, seamless Multi-Touch surface with support for simple gestures (scrolling and swiping). Click and double-click anywhere. Ambidextrous construction accommodates left- and right-handed users.

  Magic Trackpad
  Glass Multi-Touch trackpad for precise cursor control; supports inertial scrolling, pinch and expand, swipe, three-finger swipe, four-finger swipe, tap, double-tap, rotate, screen zoom, scroll, click and drag, click drag and lock, secondary click A and B.

  Wireless

  • Wi-Fi
    802.11ac Wi-Fi wireless networking;2 IEEE 802.11a/b/g/n compatible
  • Bluetooth
    Bluetooth 4.0 wireless technology