Wired
With the DisplayPort adapter, it seems that you can connect up to 6 Mac minis with M1 chips, and up to 4 external displays each for MacBook Air and MacBook Pro with M1 chips. This is well above the number of connectable external displays Apple has stated in its specifications.
Number of units exceeding Apple’s official explanation
On its official website, Apple supports one external display (up to 6K resolution, 60Hz) for each MacBook Air and MacBook Pro with M1 chip, and up to two displays (up to 6K resolution, 60Hz) for Mac mini at the same time. It says that it is compatible with the display (up to 4K resolution, 60Hz display connected via HDMI 2.0).
However, according to Utuber Raslan Tarpov’s experiment, it seems that it was possible to connect up to 6 external displays to the Mac mini and up to 4 external displays to the MacBook Air and MacBook Pro (in the case of MacBook, to the main body). Since there is a display, a total of 5 displays can be output). He uses a DisplayPort adapter and DisplayLink software in his experiments.
Output to up to 6 displays with almost no problems
Due to the bandwidth of the Mac’s Thunderbolt port, it is not possible to support 6 4K displays at the same time, so Mr. Tarpov mixes external displays other than 4K such as 1080p.
In the experiment, we rendered in Final Cut Pro and simultaneously output full resolution video to multiple displays. As a result, the frame dropped only occasionally, and there was almost no problem.
Tarpov also wrote that although not tested in this experiment, the Sidecar feature should allow up to seven displays, including an iPad.
Source: Ruslan Tulupov / YouTube via MacRumors
(lunatic)
Source: iPhone Mania