Not sure there is a such a thing as a proper mains powered 2hp module, though if you can power via USB then there is this from Rakits https://www.rakits.co.uk/product/go/ which might let you lighten the load on the Rackbrute.
-- wishbonebreweryThat would imply that my pc would need to be running as well.
Don't like that idea but thnx for the suggestion.-- Chrissozz
That would imply that you need a Phone Charger Plug ;-) No computer needed, a computer would / could introduce a load of machine noise into your modular.
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.