120mm fan shrouds to better exhaust air from my PC. : r/functionalprint
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10x BITMAIN Antminer S9/L3+ 120mm Fan Duct Cooling Shroud 4 Inch Vent Black Cowl | eBay
Amazon.com: Tinker3D Antminer S7 S9 S9i E3 T9 L3+ D3 A3 V9 X3 120mm Fan Duct Cooling Shroud to 5 Inch Vent Hose
STL file 120mm Fan to 100mm Duct Adapter・3D printer design to download・Cults