Connect a display to Mac mini
The Thunderbolt 3 (USB-C) ports 
and the HDMI 2.0 port both support video output, so you can connect an external display, a projector, or an HDTV.
For Mac mini with M1 chip, you can connect one external display up to 6K using a Thunderbolt 3 (USB-C) port, and one external display up to 4K using the HDMI 2.0 port.
For other Mac mini models, the Thunderbolt 3 (USB-C) ports on your Mac mini are managed by two controllers—one for the two ports on the left, and one for the two ports on the right. You can connect one 5K display using a Thunderbolt 3 (USB-C) port, or up to three 4K displays using two Thunderbolt 3 (USB-C) ports and the HDMI 2.0 port.
Tip: If you have an HDTV connected to an Apple TV, you can use AirPlay to mirror your screen in up to 1080p HD. See Use AirPlay on your Mac for details.
If your display has a connector that doesn’t match the port you want to use, you may be able to use it with an adapter (sold separately). Visit apple.com, your local Apple Store, or other resellers for more information and availability. Review the display’s documentation or check with the display’s manufacturer to make sure you choose the right product. See Adapters for the Thunderbolt 3 or USB-C port on your Mac.
To connect this device to Mac mini | Use a cable, or an adapter and cable |
|---|---|
Apple Pro Display XDR (Mac mini with M1 chip only) | Thunderbolt 3 (USB-C) cable |
Thunderbolt 3 (USB-C) display | Thunderbolt 3 (USB-C) cable |
USB-C display | USB-C (USB 3.1) cable |
HDMI display or HDTV | The HDMI cable that came with your display or HDTV |
Thunderbolt 2 display | Thunderbolt 3 (USB-C) to Thunderbolt 2 adapter and the cable that came with your Thunderbolt 2 display |
VGA display or projector | USB-C VGA Multiport adapter and the cable that came with your display or projector |
DisplayPort or Mini DisplayPort display | USB-C to DisplayPort or Mini DisplayPort adapter and the cable that came with your display |
DVI display or projector | USB-C to DVI adapter and the cable that came with your display or projector |
Adjust and arrange displays. After you connect a display or projector, use Displays preferences in System Preferences to turn screen mirroring on or off, arrange and manage multiple displays, and make other adjustments to color, resolution, and more.
Troubleshooting. If you’re not sure how many external displays your Mac mini supports, check the Resources tab in About This Mac. Choose Apple menu 
> About This Mac > Resources, click Specifications, then locate Video Support (you may need to scroll). To troubleshoot an issue with an external display, see If your external display isn't detected or appears blurry.