The psu is the power supply cable between the power supply and the mainboard. The PSU power supply is a power conversion class of the computer (different from the battery power supply), which is responsible for converting the standard alternating current into low-voltage stable direct current for other components in the computer.
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Computer Power supply unit (English: PC Power supply unit, often directly referred to as the power supply, referred to as PSU or power supply) in Hong Kong is also known as the fire cow, (is the electric cow also, the power supplier, from the early transformer shaped like a cow). At present, the general computer power supply is a switched power supply, and the input voltage automatically ADAPTS to the user's local power parameters (and some products may require the user to adjust the voltage switch).
Fire bull is a transformer, is a kind of electric power device. The fire bull interface is the power supply A1 and A2 interface, which is the two leading terminals of the coil (connecting to the power supply).
This is the common name of Hong Kong. People from ancient times used fire for cooking and lighting. Modern people use electricity to cook and light, and Chinese southerners commonly call this new energy source electric fire. Cattle were the source of power for the ancients; The power source of modern people is electricity, and the power transformer provides this new power source. Hong Kong people's ancestors are southerners, the power transformer nickname fire cow is such a reason.
The fire bull interface is the interface made of hot bull