The Tekpower TP3016M Portable Handheld Variable DC Power Supply with USB Port is a versatile and reliable power source suitable for various applications. With a maximum voltage output of 30V and an adjustable linear power supply type, this device offers precise control over power levels. The inclusion of a USB port allows for convenient connectivity to compatible devices, making it a valuable tool for testing, measurement, and inspection tasks. Designed for portability and efficiency, this power supply is a practical choice for professionals in the business and industrial sectors.