Not tryed just yet has 3 fan on there own which’s . I’m Presuming the USB cable is a power cable to power the Exhaust fans at night with an external power from a power bank Or the vehicle. I’ll Installing USB PowerPoint all around my vehicle
【Efficient Performance】: Operating at just 2.5W, this fan offers lightweight energy usage without compromising airflow efficiency.
【USB Powered】: Conveniently powered via USB plug, allowing for easy connection to devices like laptops or power banks.
【Durable Materials】: Constructed from ABS enclosure material, ensuring robustness and longevity for reliable use over time.
【Manufactured in China】: Proudly produced by Yuyao Haotian Electric Appliance Co., Ltd, located in Ningbo City, Zhejiang Province, assuring quality craftsmanship.
【Portable Design】: Lightweight and compact, making it easy to transport and set up in various locations for on-the-go ventilation needs.