50x50x10 mm Quiet cooling fan, 12v, 3000±10% RPM, 30,000h MTTF. They are durable and you don't need to buy another small fan in the next 30,000 hours.
Use these 23 dB cooling fans to get near-silent operation. Ideal replacement for noisy or broken 12V 5cm fans in 3D printers, DVD players, DVRs, switches, other network and storage devices, etc.
The 9-blade fans can be run 2700 to 300 rpm by fine-tuning the fan for maximum airflow(6.25 CFM)
You will need a battery pack/power supply that supplies 12vdc and has a capacity sufficient to provide 100ma to make the fans run. A 2.5mm pitch 2-pin connector makes it compatible with your computer motherboard or 3D printer power system.
Please kindly contact Icstation Service Team at icstation（at）hotmail if you received a damaged/wrong product. We provide free replacement and tech supports.
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