Thunderbolt 5 not showing on M4 Max hardware.
Recently purchased MacBook Pro M4 Max showing ports as Thunderbolt 4. Should be Thunderbolt 5. Anyone have a machine showing Thunderbolt 5 on hardware overview?
So what you are saying is that system profiler has not yet been updated to reflect ThunderBolt-5 capability. Report that here:
and that Apple support first responders are not yet up-to-date on a feature no one can use yet.
ThunderBolt-5 cables are the same as older ThunderBolt -3 and-4 cables, EXCEPT: they can support 240 Watts power. The difference in Thunderbolt-5 data stream, that allows much higher data rates, is that the data coding changes to a modulated signal (three patterns per signaling interval). So it can ONLY go faster when talking to a Thunderbolt-5 device that understands it modulated data signal (no special cable required).
the cables are already switching as fast as possible with this type of digital logic. There are no more changes that can make the cables any faster.