High wattage 19.5V 7.4mm are usually harder to find. Most common are 65W chargers.

HP uses two different voltages for the 7.4mm black tipped chargers: 19V and 19.5V. Not sure if both will work with the latest gen mini PCs but 19V chargers will work for these. I’ve had a hard time looking for 120W 19.5W chargers that 705 G1 minis used that I had to resorted to using 19V ones.

Their laptops use the smaller 4.5mm blue tipped chargers. Makes sense since these laptops are too thin.