| BSM307 |
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| 1USB fan speed control module Input: Can be connected to the computer USB port, mobile phone charger, power bank Output: Can connect fan Input voltage: DC4~12V Output voltage: DC2.5~7.5V Output power: 5W(max) Item size: 32MM * 12MM * 12MM Item weight: 0.012kg Turn the knob clockwise to increase the air volume, counterclockwise to reduce the air volume |