Use adapters with your Mac mini
The following Apple adapters are available to connect external devices, displays, and more, to the Thunderbolt 3 (USB-C) ports on your Mac mini.
Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter: Connect your Mac mini to Thunderbolt 2 devices or a Thunderbolt display.
USB-C Digital AV Multiport Adapter: Connect your Mac mini to an HDMI device, while also connecting a standard USB device.
USB-C VGA Multiport Adapter: Connect your Mac mini to a VGA projector or display, while also connecting a standard USB device.
See the Apple Support article Adapters for the Thunderbolt 3 (USB-C) or USB-C port on your Mac. Adapters and other accessories are sold separately. Visit apple.com, your local Apple Store, or other resellers for more information and availability. Review the documentation or check with the manufacturer to make sure you’re choosing the right adapter for your Mac mini.