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Posted by anan

- Today at 09:40:47

QuoteWhile the connector is standardized, the underlying protocols and power profiles are not.

This is not true. Power delivery is by itself a standard. Smartphones have more charging standards (QC, Vooc, etc.) but laptops only use PD.
I have not seen a laptop with a PD at 240W. Anything that needs more than 140W uses a barrel connector. It is likely due to the need to drop the higher voltage of anything > 100W to the mostly standardized 20V. A barrel connector can just push more AMPs at the more common 20V.

Posted by Stewart Bruce

- Yesterday at 18:40:16

Not only laptops, don't forget all those desktop monitors that require a brick and a barrel charger.

Posted by Redaktion

- Yesterday at 18:31:05

Fortunately, most laptops now support Power Delivery, making it much more convenient not having to carry a different power brick for every device. Some laptops like the Schenker Connect 15, however, still include an additional barrel-style power connector alongside USB-C charging. At first glance this may feel outdated, but in practice it can still offer real advantages.

https://www.notebookcheck.net/USB-C-or-barrel-connector-Why-some-laptops-in-2026-still-rely-on-two-charging-ports.1324356.0.html