100% satisfackion : If you are not satisfied for any reason, please contact our customer server first we will provide best server for you immediately. DC 12V Blower Fan with Speed Controller Dual Ball Bearings - High Airflow, Variable - Pgsa2z at... Connector: 4-wire original server dual connector (DC mini 4Pin) Size: 119 x 119 x 38mm Voltage: DC 12V Current: 5., 0A Speed: 7000RPM Air volume: 280., 38CFM Wind pressure: 24., 60mmH2O Noise: 64dB-A Bearings: High precision double ball bearings Fan frame: injection molding, PBT + 30% glass fiber + VO flame retardant Blade: injection molding, PBT + 30% glass fiber + VO flame retardant. ASIC Cooling Fans for Crypto Miners | High-Efficiency Miner Fans – LYS Shenzhen 12v Cooling Fan HVVH Dual Ball Bearings High Speed Durable 4 Pin DC 12V 5A 7000 RP Cooling Fan Brushless 120mm 7000RPM Server Fan High efficiency:above 90%(can save more power in the same air volume) High Precision Ball Bearings vs. High Speed Ball Bearings | TFL High Compatibility: DC mini 4Pin Size: 119mm x 119mm x 38mm, Dual Ball Bearing design fit for all 119-120mm fan