USB Fan Power Speed Switch, 3 Wind Speed Adjustable, DC5V 1A Input, Max 5W, 2.5M Extension Cable Fan Controller

This USB fan power & speed switch is a practical control accessory designed for all kinds of 5V USB cooling fans, desktop mini fans, camping fans, chassis heat dissipation fans and small USB air coolers. Built with stable control chips and high-quality internal wiring, it delivers reliable three-speed wind adjustment, meeting users’ diverse cooling demands in daily work, study and outdoor scenarios.

The core highlight of this controller is its 3-level adjustable wind speed function. Users can freely switch low, medium and high wind modes by pressing the control button. Low speed brings soft silent airflow for night use, medium speed offers balanced cooling power for office desktop work, and high speed outputs maximum wind volume for quick heat relief on hot summer days. The cycle switch design is easy to operate without complicated setup, and the integrated power control function directly cuts off power output, so users do not need to plug and unplug the USB cable repeatedly to turn off the fan, greatly extending the service life of USB ports and fan motors.

In terms of electrical parameters, the switch supports standard USB DC5V/1A input, with a maximum load power of 5W, perfectly matching the power demand of most small USB fans on the market. Strict internal current and voltage protection circuits are installed to avoid overload, short circuit and voltage surge damage to fans, power banks, laptop USB interfaces and wall USB adapters. Whether powered by a computer, mobile power supply, car USB port or 5V USB charger, it maintains stable current transmission without flickering wind speed or abnormal noise during operation.

Equipped with a 2.5-meter long built-in extension cable, this speed switch solves the trouble of short original fan wires. The extra-long cord allows flexible placement of fans far away from power sources, ideal for bedside, office desk, camping tent, car dashboard and computer chassis installation. The outer cable jacket is made of wear-resistant, flexible PVC material, resisting frequent bending, pulling and daily abrasion, with stable internal copper conductors to reduce power loss during long-distance transmission. The plug-and-play design requires no driver or software installation; just connect the USB male end to a power supply and link the fan to the control terminal, then it works instantly.

Compact and lightweight in structure, the controller shell adopts flame-retardant plastic with good heat dissipation performance, preventing overheating during long-hour continuous use. The smooth button surface supports thousands of times of pressing without jamming or failure. Its mini size saves desktop space, easy to store in backpacks, handbags and camping gear for outdoor travel, business trips and camping activities.

This multi-scene compatible speed switch fits a wide range of application groups. Office workers can use it with desktop cooling fans to create a comfortable working environment; students apply it for dorm mini fans with adjustable quiet wind for night study; campers match it with outdoor tent fans to get adjustable cooling airflow; PC enthusiasts use it to control chassis cooling fans for customized heat dissipation. We support OEM & ODM customization including shell color, cable length and printing logo for bulk wholesale orders. Every product passes full electrical testing before delivery to guarantee consistent quality, stable speed regulation and long service life, becoming an essential matching accessory for all USB small fans.