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This is touch control USB fan adapter cable based on touch and MOS FET chip. Onboard touch sensor module and touch spring£¬ so both sides of the transparent shell can be touched and control the USB fan and USB LED. Features: - Working voltage: 4.5~5.5VDC - Suitable for: USB fan£¬ USB LED powered by DC jack 5.5*2.1mm or DC jack 5.5*2.5mm - Drive power: 10W (2A) - Input Interface: USB - Output Interface: DC head 5.5 * 2.1 - Cable length: 1.2 m