The power supply unit in today’s modern computer assumes a role probably more critical than any other single component in your system.
A poor PSU can also cause other components to fail in your computer.
The right Brand names = Quality
Some approved Brand names follow…
Seasonic - any model
Corsair - any model
Thermaltake - “Toughpower” series only
Coolermaster - “Real Power Pro” series only
PC Power & Cooling - any model
Silverstone - any model
Unless you are into some serious gaming a 600 watt or higher will take care of your needs.
If you are a serious gamer a 750 Watt, or a little higher will be all that you would need.
It should work. The only company I’ve heard to use a funny wiring layout is Dell, and I’m not so sure they do that anymore, but don’t quote me.
A quality 450-500W should be fine unless you plan on getting some high-end GeForce or Radeon to drop in that thing. Even then, some 500-550W units can do it if the +12V has enough juice to sufficiently power the beast.