Computer Power Supplies
Computer power supply units help convert mains AC to low-voltage DC power for the internal parts of a computer. Some computer power supplies are equipped with a manual selector for input voltage, while others automatically adjust to the supply voltage. Computer power supply units must match the power needs of the computer. Computer power supplies save money by wasting less power. Computer power supply units also release less waste heat. Most desktop personal computer power supplies are a square metal box, and have a large bundle of wires emerging from one end. The latest in computer power supply is the modular power supply which provides a removable cable system and hence effectively reduces clutter and removes the risk of dangling cables interfering with other components.