WDERAIR 4 x 120mm Server Rack Mount Fan 12V with AC 110V 120V 220V 240V Variable Speed Controller, High Airflow for DIY Mining Rig, AV Cabinet, Modem, Window, Greenhouse Cooling Ventilation - 12025B12Vx4-control

• Cooling Fan：DIY Ventilation Project for GPU mining rig, router, rack receivers, cabinet, av equipment modem, chassis, amplifiers, server workstation, computer pc case, greenhouse, mushroom growing or as exhaust fan for freeze dryer, vent martha tent, terrarium, gaming consoles/devices Window Exhaust：Have a wide arrange of applications and options there. You can use the fans two by two together or four side by side. As a replacement window fan can be placed one forward and one reverse to complete the push and pull of air Variable Speed： AC to DC 12V Speed controller | Input : AC 100V - 240V 50/60HZ | Output: 3v - 12v 2A | Plug-and-Play, Easy Installation 120V Fan：240 x 120 x 25 mm (9.44 x 4.72 x 1 in.) x 2| Speed: 900 to 3000 RPM x4 | Airflow: 45 to 92 CFM x4 | Noise: 22 to 37 dBA x4 |Rated Current: 0.45A x4 | Bearings: Dual Ball Dual Ball Bearing：Long-term work. Long life-50,000 Hours. computer fan with 4.9 feet AC plug.Please feel free to talk to us if you have any problems using the product or need technical support. We will reply within 24 hours