he 3000W SilverStone HELA 3000Rz inside a standard PC case is neither a typo nor an April Fools' joke. The Taiwanese manufacturer has rolled out a behemoth capable of powering four flagship GeForce RTX 5090 graphics cards simultaneously, effectively turning a desktop tower into a compact industrial power station.
A home power substation
To grasp the sheer appetite of this unit, look at the major appliances around your home. Three kilowatts is significantly more power than a standard electric kettle, water heater, or washing machine draws at peak heating.
Manufacturers are releasing extreme power supplies designed to feed multiple graphics cards at once
Plugging a PC like this into a standard wall outlet alongside an iron or a space heater will instantly trip the circuit breaker the moment a heavy game or render job launches. Reliable operation demands a dedicated 16-amp circuit. High-end PC hardware has clearly hit an architectural bottleneck: instead of fine-tuning chip efficiency, engineers are simply flooding silicon with raw wattage, leaving consumers to deal with skyrocketing electric bills and blistering room temperatures.
Who actually needs this
Everyday gamers do not need this monstrosity under any circumstances, no matter how aggressively marketing teams push the idea of "future-proofing." Running four power-hungry GPUs is only relevant for niche workstations built for local AI model training and heavy 3D rendering. For any modern single-GPU gaming rig, a solid 750–1000W power supply is still more than enough, leaving 3000W units as costly oddities for specialist labs.