To create a cheap and safe small power distribution unit, innovative designs and materials can be used. First, choose affordable but highly durable flame-retardant materials, such as flame-retardant ABS plastic, to ensure that the small power distribution unit can effectively isolate the fire source under abnormal circumstances. Secondly, intelligent monitoring technology is introduced to monitor current, temperature and other parameters in real time. Once an abnormality is discovered, an alarm is immediately issued and the power is cut off to ensure the safety of users and equipment. In addition, the modular design facilitates maintenance and updates and reduces overall costs. In terms of appearance design, rounded edges that comply with safety standards are used to prevent users from being injured. Finally, regular quality testing and certification are conducted to ensure that the small power distribution unit meets international safety standards. Through these measures, it is possible to provide a higher level of security and meet user needs while keeping costs low.