With the rumours of the mega power consumption of the 4090, I saw a meme image the other day where the new cards had a kettle plug 240v port as a joke, but honestly it made me think: 'actually that is genius'!
Not with the way the GPU works now, GPU run on 12v input, plug 240v and GPu goes Boom. That's what PSU is for , to change 240v to 12v. If you put 240v plug on the GPu and plug into wall then you have to put a PSU on the GPU itself