iMac (21.5-inch, Mid 2014) - Technical Specifications
Display
21.5-inch (diagonal) LED-backlit display with IPS technology; 1920-by-1080 resolution with support for millions of Intel Core i5 processor (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache
Memory
8GB of 1600MHz LPDDR3 onboard memory
Storage1
500GB (5400-rpm) hard drive
Configurable to 1TB hard drive, 1TB Fusion Drive, or 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 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