Connect multiple displays to your Mac mini (2018)

With four Thunderbolt 3 ports built in, Mac mini (2018) supports an HDMI display along with two 4K displays or one 5K display.

Mac mini (2018) supports one HDMI display with a resolution of 4096 x 2160 at 60Hz, plus one of the following configurations:

• One 5K display with a resolution of 5120 x 2880 at 60Hz
• Two single-stream transport (SST) 4K displays with resolutions of 4096 x 2304 at 60Hz
• One multi-stream transport (MST) 4K display with a maximum resolution of 4096 x 2304 at 60Hz

Connect to Thunderbolt 3 ports on different buses