iMac · 2021

iMac (24-inch, M1, 2021)

Ports: Two Thunderbolt / USB 4 ports, Two USB 3 ports Newest compatible macOS: macOS 27 Golden Gate.

Model identifier: iMac21,1
Introduced: 2021
Newest macOS: macOS Golden Gate 27
Family: iMac

Download macOS for this Mac

macOS Golden Gate 27The newest macOS Apple supports on this Mac. See download options →

Older versions you can also install, if they are newer than the macOS this Mac shipped with:

A Mac can't run a macOS older than the one it came with. macOS Recovery can reinstall the original version.

Part numbers

Also called order or configuration numbers. “xx” stands for a region code, such as LL (USA) or B (UK).

MGPC3xx/A MGPD3xx/A MGPF3xx/A MGPG3xx/A MGPH3xx/A MGPJ3xx/A MGPK3xx/A MGPL3xx/A MGPM3xx/A MGPN3xx/A MGPP3xx/A MGPQ3xx/A MGPR3xx/A MGPT3xx/A

Apple tech specs

Questions

What is the newest macOS for the iMac (24-inch, M1, 2021)?

Apple lists macOS 27 Golden Gate as the newest compatible operating system for the iMac (24-inch, M1, 2021).

What is the model identifier of the iMac (24-inch, M1, 2021)?

The iMac (24-inch, M1, 2021) uses the model identifier iMac21,1. You can check yours in System Information › Hardware Overview.

Source: Apple – Identify your iMac model.