This is a single-board computer (SBC) thermal management module loaded with variable controlled fans. Two manual settings for each fan at either high or low, provide for a steady level of cooling. Enable all fans at high or all at low for either maximum or minimum active cooling. Or assign each fan a high or low setting to get fully custom airflow as a fixed setting.
Conversely, continuously variable fan speed is possible from a sensor attached to each separate fan cooling channel. Each separate fan sensor is a positive temperature coefficient (PTC) thermistor rated at 60Ëš Celsius. Attach any or all sensors to a thermally active device and the module increases or decreases assigned fans to an appropriately matched speed for optimum and efficient cooling.
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