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Connect multiple displays to your 27-inch iMac

You can connect up to two 4K displays or two 6K displays using the two Thunderbolt 3 ports on your iMac (Retina 5K, 27-inch, 2020).

Clean the nano-texture glass on your 27-inch iMac

Follow these guidelines to clean the nano-texture glass display on your iMac (Retina 5K, 27-inch, 2020).

Get to know the T2 Security Chip

The data on your iMac (Retina 5K, 27-inch, 2020) is encrypted by the T2 Security Chip.

Add memory to your iMac

Find out the type of memory your iMac uses and how to install additional memory.

Use external displays with your iMac

Learn how to connect to HDMI, get help with external display issues, and more.

Learn about Mac accessories

Set up your keyboard, mouse, and trackpad and learn about other Mac accessories.

Get AppleCare+ for Mac

With AppleCare+, you’re covered. Get accidental damage coverage and 24/7 priority access to Apple experts.

Imac G4

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Imac G4 17

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