MOXOM MX-HC316 GaN Dual-Port Fast Charger with USB-C Cable

Gallium nitride is why this is the size it is. GaN switches run cooler than silicon, so the transformer shrinks and a charger that would once have been a brick becomes something that fits a jacket pocket without giving up output.

The USB-C port runs the full Power Delivery ladder to 20 V and 3.25 A, which covers a laptop as comfortably as a phone; the USB-A alongside it does up to 22.5 W for a second device. Smart temperature control and intelligent power distribution decide how to split the load between them, so nothing needs unplugging when the second thing goes in.