The M4 Pro Mac Mini can manage up to 3 6K-resolution screens at 60Hz above Thunderbolt and HDMI. Alternately, for just a two-screen configuration, it can do just one 6K 60Hz monitor more than Thunderbolt and also possibly an 8K 60Hz or 4K 240Hz display screen above Thunderbolt or HDMI. https://louiskkhec.blogdal.com/33095354/the-ajm1max-diaries