MPT-7210A 80mm to 40mm Fan Adapter

MPT-7210A 80mm to 40mm Fan Adapter

thingiverse

This is an adapter for fitting an 80mm computer fan to the 40mm fan mounting holes on the MPT-7210A solar charge controller. Airflow isn't the best since it's very shallow, but it's probably equivalent to the original 40mm fan airflow. The 80mm fan I used is a Delta AUB0812L since I had a handful of these already: https://www.digikey.com/product-detail/en/delta-electronics/AUB0812L-9X41/603-1224-ND/2234246 but it should work with any standard 80mm computer fan.

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