2 ms·
The ones listed as "Thunderbolt / USB 4" ie. not Thunderbolt 3, 4 or 5, appear to be exactly the models that are limited to one external display (I'm not 100% s
by wtallis 2y ago
The ones listed as "Thunderbolt / USB 4" ie. not Thunderbolt 3, 4 or 5, appear to be exactly the models that are limited to one external display (I'm not 100% sure about the iMacs). The models you mention with M4 and M4 Pro are all capable of driving multiple external displays, and the difference between TB4 and TB5 for those models is one of the maximum data rate (40Gb/s vs 80Gb/s with an asymmetrical 120Gb/s mode).
But I've never actually read a Thunderbolt spec, so I can't be sure exactly what disqualifies those "Thunderbolt / USB 4" from being advertised with a more recent Thunderbolt version number.