A transformer-based power supply is going to be marginally more ... Because although TPSs are ubiquitous, small, and cheap, they’re potentially (tee-hee!) too hot to touch.

There will also be a standby 5V supply using another small transformer, and a “power good” circuit to tell the motherboard that the PSU is ready and to activate the supply on an external input.

Everything in the world runs on electricity and power is in constant demand. To solve the geometric demand for more power, ...