It comes with a USB extension cable,and one USB plug can power two fans.In addition,the two fans have a speed control switch respectively,so that the two fans can be controlled separately,such as different speeds/start or stop.
The USB fan adopts dual ball bearings,which are very durable and have a service life of over 50000 hours.It is very quiet when working and can be placed in any corner of the living room/study,etc.
The USB cooling fan has rubber shock-absorbing feet installed on both sides to absorb noise and reduce vibration.
It is powered by a USB interface and can be connected to the USB interface of any electronic device.It is very suitable for cooling electronic devices such as routers/mini computers/TV boxes/game consoles etc.,reducing performance degradation and life span caused by overheating of electronic components.