If the Whatsminer M21S does not operate normally, it may be that the cooling fan of the miner is malfunctioning, and replacing the fan in time can reduce the loss.
The 140mm*140mm**38mm fan is a replacement fan for Whatsminer M21S. The fan is most prone to failure during long-term operation, so it is necessary to replace the old fan in time. Voltage: DC 12V/7.2A. The fan uses high-quality copper motor, steel bearings, stable and durable.



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