SilverStone Technology 120W External AC Adapter AD120-STX Power Supply

I hello again my name is Rodney Reynolds and welcome to another video review today I'm looking at the aspire 500 watt aluminum see-through power supply this particular power supply has a wattage of 500 which is more than adequate for the most demanding computer systems on the market now how is this rating of 500 watts determined well to understand that you need to know what rails are rails are basically well-regulated transformers which convert domestic current into voltages that your computer system can use and there are essentially two different rails the 3.3 / 50 rail and the 12 volt rail and in this particular case of 3.3 / 50 rail is 200 watts and the 12 the rail is approximately 280 watts which is how the wattage of this power supply is determined now the 3.3 / 50 realm is responsible for the motherboard the memory pci cards AGP cards and so on while the 12 volt rail is responsibl