SAADIYA 3 Inches CPU SMPS Cooling Radiator Fan for projects Cooling Fan Cabinet Cooler  (Black)

SMART ELECTRONICS Cpu Fan for PC 12V DC Cooling High Speed for PC Case, DC 12 Volt Cooling Fan 3 Inches CPU SMPS Cooling Radiator Fan for projects CPU fan - a fan on top of a computer processor. It helps pull and blow hot air off the processor, helping keep it cooler. Power supply fan - a fan located inside a power supply A fan is a powered machine used to create a flow of air. A fan consists of a rotating arrangement of vanes or blades, generally made of wood, plastic, or metal, which act on the air. The rotating assembly of blades and hub is known as an impeller, rotor, or runner.The basic thermodynamic principle behind CPU cooling is convection. A hot object transfers some of that heat to the air molecules near its surface, cooling slightly in the process. If the air is moving, then these heated molecules will float away, allowing cooler air to replace them and absorb more heat.