USB-C supports data transfer speeds ranging from 480 Mbps (USB 2.0) to 20 Gbps (USB 3.2 Gen 2×2). For Ethernet, USB-C can handle speeds from 10 Mbps to 100 Gbps. Additionally, USB-C can support faster transfer rates like 40 Gbps (USB4) and 80 Gbps (Thunderbolt 4).

240W chargers exist as engineering samples from charger manufacturers such as Chicony and others, but they are not sold to consumers yet, for one very simple reason:

There are no sinks that would take advantage of the 240W level yet. It’s a little bit of a chicken and egg.

No consumer focused USB charger company will release a high end charger that will not benefit the user immediately. The charger will be larger, bulkier, and more expensive than it needs to be.

140W chargers are getting more and more common because Apple’s MacBooks switched to EPR a couple years ago, but as of this comment, there are no commercially available 180W or 240W sinks.

Framework is likely going to be the first laptop to support both 180W and 240W levels, and Framework themselves did a blog post about the charger they will actually bundle with the laptop, the 180W one. [https://frame.work/blog/framework…er-adapter

The Framework 16 will also support 240W, but it sounds like Framework won’t (at least initially) sell a 240W charger.

I don’t see type C chargers being fazed out anytime soon considering it fixed all the problems and limitations micro USB, mini USB and Thunderbolt connectors had.