Keenovo 300 x 300mm 220V 750W + SSR 40A Relay - recommended option. Heats much faster than the alternative and doesn't draw power from your PSU - instead, it gets its power directly from the wall.

Will only work in countries where the mains voltage is 220V (not suitable for USA customers)

Live wiring at 220V can be dangerous. You will need to be extra careful if you choose this option. Rat Rig is not liable for misuse of this product.

Keenovo 300x300mm 24V 400W - use it if you want to be on the safe side or if the mains in your country don't use 220V.

This pad draws 400W of power from your PSU, so you need to make sure you get PSU(s) with enough total power for all the machine requirements.