USB-PD now supports 28, 36V & 48V as well because of the higher wattage limit[0] (240/48=5A which is about what the cables are rated for I believe) [0]: https:

USB-PD now supports 28, 36V & 48V as well because of the higher wattage limit[0] (240/48=5A which is about what the cables are rated for I believe) [0]: https://www.usb.org/usb-charger-pd https://www.usb.org/usb-charger-pd