I have asked many times on various forums how the hell do you get the required negative voltages needed to run an Amiga/C64 motherboard to a deafening....silence
It's called a switching power supply, look it up. There's one in every modern laptop so it can create positive and negative voltages.
This C64 "lap top" slaps the snot out of SX64 in many ways. And I say that as an SX64 fan who's owned 2 of them. Oh and what's that currently connected to my 2012 laptop right now? ... right a power brick. Cheer up A.N.
Plaz