Parts for Apple Mid 2012, Retina Non-Retina (1920 x 1080) Family

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.
By default, the "Mid-2017" iMac models ship with a compact aluminum Apple Magic Keyboard and the multi-touch "Magic Mouse 2". For an additional US$30, you can upgrade from the default keyboard to the "Magic Keyboard with Numeric Keypad" for an additional US$50, you also can upgrade from the Magic Mouse 2 to the "Magic Trackpad 2," which provides multi-touch and pressure-sensitive "Force Touch" capabilities.