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 with 3MB shared L3 cache
Memory:
8GB of 1600MHz LPDDR3 onboard memory
Storage:
256GB of PCIe-based flash storage
Graphics:
Intel HD Graphics 5000
Video Support and Camera:
FaceTime HD camera
Simultaneously supports full native resolution on the built‑in display and up to a 30-inch external display (2560 by 1600 pixels)
Support for extended desktop and video mirroring modes
Support for Target Display Mode via the Thunderbolt port using a Thunderbolt to Thunderbolt cable
Audio:
Stereo speakers
Dual microphones
Headphone port
Connections and Expansion:
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
10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
Kensington lock slot
Input:
Apple Wireless Keyboard
Magic Mouse
Wireless:
802.11ac Wi-Fi wireless networking;2 IEEE 802.11a/b/g/n compatible
Bluetooth 4.0 wireless technology