Apple iMac i7 3.20GHz 8GB SDRAM -256GB HDD 21.5" 4096 x 2304 macOS Mojave

Operating System
macOS

Processor
3.2GHz 6‑core Intel Core i7

System Memory
8GB of 2400MHz DDR4 memory

Storage
256GB

Graphics
Radeon Pro 560X with 4GB of GDDR5 memory

Display
Retina 4K display
21.5-inch (diagonal) Retina 4K display
4096-by-2304 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Wireless
802.11ac Wi-Fi wireless networking; IEEE 802.11a/b/g/n compatible

Weight
12.1 pounds (5.48 kg)