PCI-SIG warns that some 12VHPWR adapters can get dangerously hot Posted on September 12, 2022 By Charlielikes You might’ve already seen 12VHPWR replacing some 8-pin Molex connectors on the newest power supplies. It can deliver 600W across 12 rails, four times as much as an 8-pin connector. It’s about the same size as an 8-pin to boot. Tech