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Nitek FAN64 Cooling Fan For Use With POE48 Cards
The Nitek FAN64 cooling fan provides cooling for the CX254 and CX452 crossover units. It can be inserted in slot 3 of the CX254 or CX452 and is recommended for use with three or more POE48
Additionally it can also be helpful for cooling the CX254 or CX452 when operating in telecomm closets with limited ventilation.