M2 Pro model
Also supports built-in display at native resolution (capable of displaying 1 billion colors) and:
Connect up to two external displays with resolutions up to 6K (60Hz) via Thunderbolt; or connect one external display with resolutions up to 6K (60Hz) via Thunderbolt and a resolution via HDMI External monitors up to 4K (144Hz)
Connect an external monitor with resolutions up to 8K (60Hz) or an external monitor with resolutions up to 4K (240Hz) via the HDMI port
M2 Max models
Also supports built-in display at native resolution (capable of displaying 1 billion colors) and:
Up to four external displays: Connect up to three external displays with resolutions up to 6K (60 Hz) via Thunderbolt and one external display with resolutions up to 4K (144Hz) via HDMI
Up to three external displays: Connect up to two external displays with resolutions up to 6K (60 Hz) via the Thunderbolt ports, and simultaneously connect an external display with resolutions up to 8K (60Hz) or a External monitors with resolutions up to 4K (240Hz)
Thunderbolt 4 Digital Video Out
Supports native DisplayPort output via USB‑C
HDMI digital video output
Supports one display with resolutions up to 8K (60Hz) or 4K (240Hz)