120mm x 6 Small Box Computer Fan with AC Plug Dual Ball with Variable Speed Controller for Server Rack, Greenhouse, Basement, Window Exhaust Cooling Ventilation

Exhaust Fan: Designed for cooling cabinet, chassis, cerver, workstation, and amplifiers, cabinets, greenhouses, pet kennels, sheds, grow tent, plant cultivation

Variable Speed control: 110V - 220V fan power supply with adjustable speed; easily adjust the speed of these small 120mm case computer fans from silent to high speed

DIY Window Fan: Double metal protective for efficient cooling and ventilation; Powerful cooling with exhaust and intake options: Ideal for pc case fans, kitchen exhaust, desktop cooling

Dual-Ball Bearings for long lifespan: 60,000 hours lifespan, can be laid flat or stand upright; Increase air circulation in crawlspaces, basements, attics, garages, media rack, smoking corners

720mm Server Fan: Total Size: 2pcs x ( x1 inches); Airflow: 6x 93CFM; The package includes the assembled 3x 120mm box fan, variable speed controller, mounting hardware, rubber feet, and sponge pads.

For cooling electronic components. Vent booster fans improve airflow. Cabinet fans cool electronics. Register boosters enhance ventilation. Thin window fans provide ventilation. Blower fans cool effectively. 12-volt exhaust fans are common. Audio rack cabinets store equipment. Greenhouses benefit from fans.