Blower silencer gen2 for Iceriver miner. It is designed explicitly for Iceriver miner,such as AL3, KS7, KS5M, KS5L, KS3M, KS3L, KS3, KS2, KS1, etc. it suits miners with dual 120mm fans and single 140mm fans, such as Antminer (excluding S21pro and S21+), Whatsminer, Avalon, and Iceriver.
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