The cooling fan manufacturer states that DC fans are powered by direct current voltage (mainly DC 12V/24V/48V), and drive the impeller to supply air through a Brushless Direct Current (BLDC) motor, which is different from household 220V Alternating Current (AC) fans. Features: low-voltage safety, simple speed regulation, low noise, high energy efficiency, widely used for equipment heat dissipation. ​

Graphics card cooling fans are the core of GPU air-cooling heat dissipation, which are divided into two major categories: axial flow fans (direct-blow type) and turbine blowers (reference-design enclosed type). Equipped with 4Pin PWM temperature-controlled speed regulation, they are responsible for taking away the heat from heat pipes and fins, directly determining the gaming operating temperature, noise level and service life of the graphics card.

The all-in-one PC fan is the core heat dissipation component inside the all-in-one computer, responsible for cooling key hardware such as the CPU and GPU to avoid overheating-induced frequency throttling or system crashes. The following will teach you how to determine if the all-in-one PC fan needs to be replaced: 1. Listen for abnormal noises: If you hear a buzzing, ticking or scraping sound, it indicates that the fan bearing is damaged or the fan blade is deformed. The noise will appear as soon as the device is powered on, and will get louder as the fan rotates. If the rotation speed fluctuates erratically with intermittent abnormal noises, it points to an aging motor or unstable power supply. If there is no sound at all but the computer is extremely hot,

Cooling Fan Manufacturer analyzes that the cooling fan is a general-purpose heat dissipation component that removes heat through forced air convection, and is widely used in chassis, power supplies, industrial control equipment, servers, home appliances, new energy equipment, etc.

The DC fan manufacturer states that a DC fan is a heat dissipation device that uses direct current to drive the fan blades to rotate, and is widely applied in fields such as electronic equipment, computers, industrial machinery and household appliances. Its core usually adopts a DC brushless motor, which converts electrical energy into mechanical energy through the principle of electromagnetic induction. I. Structural Classification (by Bearing Type): 1. Sleeve Bearing: low cost, low noise; short service life, abnormal noise after long-term use, oil leakage. Suitable for: low-cost, short-time operation equipment. 2. 2 Ball Bearing: commonly used in industrial scenarios.