The 21.5" iMac Desktop Computer is an all-in-one desktop computer with an ultra-slim unibody design. Measuring at just 5mm at its edges. The body of the iMac isn't the only thing that got thinner. The LCD display is now 5mm thinner, and Apple also removed a 2mm 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:

• 2.7GHz Intel Core i5 Quad-Core
• 4GB, 8GB, or 16GB RAM
• 500GB, 750GB, 1TB, or 2TB HDD
• nVIDIA GeForce GT 640M Graphics (512MB)
• 21.5" HD LED-Backlit IPS Display
• 1920 x 1080 Native Resolution
• 802.11a/b/g/n Wi-Fi, Bluetooth 4.0
• Thunderbolt, USB 3.0, SDXC Card Reader
• 720p FaceTime HD Camera, Dual Mics
• Mac OS
• Model: MD093LL/A