Display

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

Processor

1.4GHz
dual-core Intel Core i5 processor (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache

RAM

8GB of 1600MHz LPDDR3 onboard memory

Hard Drive

500GB (5400-rpm) hard drive

Graphics Coprocessor

Intel HD Graphics 5000

Wireless Type

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

Connections

• Headphone
• SDXC card slot
• Four USB 3 ports (compatible with USB 2)
• Two Thunderbolt ports
  • Mini DisplayPort output
  • Support for DVI, VGA, and dual-link DVI (adapters sold separately)
• 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
• Kensington lock slot

Audio Support

• Stereo speakers
• Dual microphones
• Headphone port
• Headphone/optical digital audio output (minijack)
• 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
• Support for Target Display Mode via the Thunderbolt port using a Thunderbolt to Thunderbolt cable (sold separately)