This Adjustable DC3v- 24V 3A Power Adapter with LED Voltmeter is a versatile power supply that can convert AC 110-240V to DC 3v, 9v, 12V, 24V, 9v, and 24V. With a power output of 72W, it is suitable for use with a variety of computer components, including power supply units. The LED voltmeter allows for easy monitoring of the voltage output, ensuring that your devices are receiving the correct amount of power. This power adapter is adjustable, making it a convenient and reliable choice for your power supply needs.