Apple iMac (Retina 4K, 21.5-inch, 2017) All-in-One Desktop Computer. Model: A1418. Silver body finish.

i7-7700/Radeon Pro 560/512GB/16GB

Features:

• 21.5-inch (diagonal) Retina 4K display, 4096-by-2304 resolution with support for one billion colors, 500 nits brightness
• 3.6GHz quad-core Intel Core i7-7700 (Turbo Boost up to 4.2GHz)
• 16GB of 2400MHz DDR4 memory
• 512GB Fusion Drive SSD
• Radeon Pro 560 with 4GB of VRAM
• FaceTime HD camera
• 802.11ac Wi-Fi wireless networking
• Bluetooth 4.2 wireless technology

Ports:

• 3.5 mm headphone jack
• SDXC card slot
• Four USB 3 ports (compatible with USB 2)
• Two Thunderbolt 3 (USB-C) ports with support for: DisplayPort, Thunderbolt (up to 40 Gbps), USB 3.1 Gen 2 (up to 10 Gbps), Thunderbolt 2, HDMI, DVI, and VGA supported using adapters (sold separately)
• 10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
• Kensington lock slot