GAME POWER SUPPLY ATX12V V2.31 111880-1 (K) LOC. BB-3

The "Power Supply" with dimensions of 220mm in length, 90mm in width, and 160mm in height. This is a standard ATX power supply, which is a component used in desktop computers to provide power to the various internal components. 

Key features of an ATX power supply include: 

• Energy Efficiency: Often rated with 80 Plus certifications (Bronze, Silver, Gold, Platinum, Titanium), indicating how efficiently they convert power from the wall to usable power for the computer.

• Modularity: Can be non-modular (all cables fixed), semi-modular (some cables removable), or modular (all cables removable).

• Ventilation: Uses fans or heat sinks to ensure proper cooling.

• Protections: Includes protection against overvoltage, overcurrent, and short circuits.

ATX power supplies are designed for desktop computers and are not suitable for laptops or other portable devices. They connect to the motherboard and provide power to components like the CPU, GPU, and storage devices. 

The ATX standard also introduced features like soft power support, allowing computers to be turned on/off via the operating system, and keyed connectors to prevent incorrect plugging.