Check the listing for details. Stable DC Power Supply Module Adjustable Output for Sensor and for mcu Projects. Condition: New. Listed at 13.63 USD. Positive is very important to us. High Safety Protection: Equipped with self-recovery fuses to prevent FOR overload and short circuits for secure operation. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.