Most modern monitors do not require, or support Thunderbolt. They take video signals over one or more of the following interfaces:
- DisplayPort
- HDMI
- USB-C (where one cable might be enough to hook up video, downstream hub ports, and charging power)
The USB-C ports on a M4 MacBook Pro support USB-C connections directly – and there are plenty of third-party adapters and adapter cables to go from USB-C to DisplayPort, HDMI, or just about anything else you might need. There is also a HDMI port on the M4 MacBook Pro for HDMI to HDMI connections.
Thunderbolt comes in when you want to
- Connect a 5K or 6K monitor such as an Apple Studio Display or Apple Pro Display XDR, or
- Connect two monitors, up to 4K @ 60 Hz each, to one dock. (The monitors do not need to speak Thunderbolt.)
Macs do not support DisplayPort MST daisy-chaining, or connecting more than one monitor to a plain USB-C dock.