you know CPU fans are pretty cheap, I watch Newegg and get them 4 for $10 or less after rebate for 120mm. Be sure to get a 3 pin connector (CPU fan) if this plugs in to your mother board, 4 pin if it's just your power supply (case fan).
Not sure if these links work, Amazon has some cheaper than newegg, haven't found the 4 pack yet.
https://www.amazon.com/Black-Computer-C ... fan+4+pack
https://www.amazon.com/s/ref=sr_st_pric ... e-asc-rank
I just watch Slickdeals.net for sales to come by.
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