• Refurbished Apple iMac 21.5-Inch "Core i5" 2.3 (Mid-2017)
• Identifiers: Mid-2017 - MMQA2LL/A - iMac 18,1 - A1418 - 3068
• 14-nm "Kaby Lake" 2.3 GHz Intel "Core i5" processor (7360U)
• 2133 MHz DDR4 SDRAM
• 500GB or 1000GB Storage options
• 21.5" 1920x1080 LED-backlit 16:9 widescreen IPS display
• Intel Iris Plus Graphics 640 graphics
• "FaceTime HD" webcam
• Four USB 3.0 ports, dual Thunderbolt 3 (USB-C) ports
• Gigabit Ethernet, 802.11ac Wi-Fi, and Bluetooth 4.2
• Apple USB Keyboard & Mouse
• One Year Hardware Warranty

The iMac "Core i5" 2.3 21.5-Inch Aluminum (Mid-2017/Kaby Lake) features
a 14-nm "Kaby Lake" 2.3 GHz Intel "Core i5" processor (7360U)
with two independent processor "cores" on a single chip,
a 4 MB shared level 3 cache,
8 GB of 2133 MHz DDR4 SDRAM that is reportedly onboard (but actually can be upgraded later),
a (5400 RPM) hard drive and
an "integrated" Intel Iris Plus Graphics 640 graphics processor that shares system memory.

It also has a built-in "FaceTime HD" webcam and stereo speakers.

This model has a 21.5" 1920x1080 LED-backlit 16:9 widescreen IPS display
with a fully laminated glass cover and an 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.

Connectivity includes
four USB 3.0 ports,
dual Thunderbolt 3 (USB-C) ports,
Gigabit Ethernet,
802.11ac Wi-Fi, and
Bluetooth 4.2.

Compared to its predecessor, this model essentially has the same external enclosure, but it has a more advanced processor, architecture, and graphics as well as Thunderbolt 3 (USB-C) ports.

Please note that stock images are used.