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Nano Sheild. PWM signal mode: 5V25KHZ. PWM signal output range: 0%-100%. DC12V 4 Wire. OLED LED&RGB. The input of the speed signal port is directly connected to the output of the fan. It is mainly used to guide the fan speed signal back to the main board of the device to detect the speed.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.