The 21.5" iMac All-in-One Desktop Computer is an all-in-one desktop computer with an ultra-slim unibody design. Measuring at just 5 mm at its edges. The body of the iMac isn't the only thing that got thinner. The LCD display is now 5 mm thinner, and Apple also removed a 2 mm gap between the LCD panel and the glass to save even more space.
This model has a 21.5" 1920x1080 LED-backlit 16:9 widescreen IPS display with the "cover glass fully laminated to the LCD and anti-reflective coating." The rear of the case is aluminum and is thicker in the middle and tapers to a razor thin 5 mm at the edges.
Key Features:
Super thin profile
Aluminum design
Intel 4th Gen Haswell Core i5-4260U Dual-Core 1.4GHz CPU
Max Turbo Frequency: 1.4 GHz
Intel Smart Cache: 3 MB
4GB or 8GB RAM
256GB, 512GB or 1TB SSD
Stereo speakers
Intel HD Graphics 5000
10/100/1000Base-T Ethernet
802.11ac AirPort wireless
Bluetooth 4.0
SDXC card reader
FaceTime HD webcam and microphone
macOS
21.5-inch LED-backlit TFT active matrix IPS display (1920 x 1080)