- Intelligent fast power negotiation to address insufficient USB input power. Supports mainstream QC 2.0 and QC 3.0 fast charging. You can also disable auto negotiation and select manual mode. - Digital control for precise voltage and current adjustment (current limit). Voltage steps: 0.01 V or 0.1 V. Current steps: 0.001 A or 0.01 A. Settings are clearly displayed for accurate configuration. - Power 15 W, maximum current 2 A. Suitable for fan speed regulation, desktop power supply, adjustable charger, and router power supply, among other uses. Output voltage can be adjusted arbitrarily, with current limit adjustable from 0 to 2 A. - LCD display shows input voltage, output voltage, temperature, current, and power, plus capacity statistics and time statistics for clear monitoring. - Use scenario: As a bench power supply for electronics projects, providing precise voltage and current limits while displaying key measurements for testing and debugging. - Use scenario: To regulate fan speeds (for PC cases or other DC fans) with adjustable voltage and a defined current limit, preventing overcurrent while maintaining stable operation. - Use scenario: As a compact power source for routers, desktop devices, or other small network or electronic devices that require a stable, adjustable DC supply with clear readouts.