Features RUNNING SPEED: Powerful PWM cooling fan supports automatic speed adjustment by motherboard or sensor, the fan will run from 3000‑5000rpm depending on the internal space or device working temperature. SEALED MOTOR: The computer PC GPU CPU case cooling fan features a sealed motor, corrosion and oxidation resistant, with overheat protection. ABS STAINLESS STEEL AND BRASS: This computer PC GPU CPU case cooling fan is made of ABS, stainless steel, brass material with smart temperature control module, convenient and good to use. 3 GEAR ADJUSTMENT: Our GPU CPU case cooling fan uses DC power supply for 6‑70VDC, 3 gears adjustment, simple and practical. APPLICATION: CPU cooling fan is designed for CPU cooling, GPU cooling, industrial equipment cooling fan replacement, greenhouse, small grow room, cabinet, server or welder. Specification: Item Type: Cooling Fan Material: ABS, Stainless Steel, Brass DC Power: 6-70VDC Application: Designed for CPU cooling, GPU cooling, industrial equipment cooling fan replacement, greenhouses, small grow rooms, cabinets, servers or welders. Package List:1 x Computer CPU Case Cooling Fan 6 x Screw8 x Nut2 x Accessories Package List 1 x Computer CPU Case Cooling Fan 6 x Screw 8 x Nut 2 x Accessories