One common complaint about the previous generation magic keyboard is that charging the iPad through the USB-C port on the keyboard was a significantly slower process then using the actual port on the iPad.
According to this article:
The original Magic Keyboard passed through up to 22W through the Smart Connector.
For the new magic keyboard and the new M4 iPad Pro, Apple has upped the charging speed from the magic keyboard’s passthrough smart connector to 60W, according to MKBHD.
8:35 is the timestamp.
A pretty dramatic increase if true.
According to this article:
How to charge your iPad Pro while using the 2020 Magic Keyboard
Apple surprised everyone and released the new Magic Keyboard for iPad Pro ahead of schedule just a little while ago. This marks a few "firsts" for the
appletoolbox.com
For the new magic keyboard and the new M4 iPad Pro, Apple has upped the charging speed from the magic keyboard’s passthrough smart connector to 60W, according to MKBHD.
A pretty dramatic increase if true.