Feature: 1. REPLACEMENT: 80mm silent USB 5v 0.65A cooling fan for replacing standard computer case fans, gaming PC fans, CPU cooler fans, or other electronic device radiator coolers, provides effective silent cooling. 2. ADJUSTABLE SPEED: The speed of the computer fan can be adjusted to the level that best suits your environment by using different buttons to control the wind speed. High, medium, low three speeds are adjustable for quietness. 3. USB POWERED AND LONG LIFE: This 80mm cooler fan is powered via USB, simply plug it into an outlet and start it up. Double ball bearings last 50000 hours for stability and reliability. 4. WIDELY APPLICABLE: Designed to meet the cooling and ventilation needs of a wide range of devices, including computers, gaming consoles, home appliances, recreational equipment, solar energy equipment and more. 5. INCREASE DEVICE LIFE: 80x80x25mm size, 95.8 ±10% CFM airflow, 1.5W power, the USB cooling fan ensures that your device stays at the correct operating temperature, which improves performance and extends its life span. Specification: Item Type: Computer Fan Material: ABS Color: Black Fan Size: Approx. 80 x 80 x 25mm / 3.15 x 3.15 x 0.98in Input Interface: USB Rated Voltage: 5V 0.65A Fan Speed: Maximum 2800RPM Fan Speed Adjustment: High, Medium, Low Three Speed Adjustment Noise: 18-28dBA. Package List: 1 x Computer Fan Note: Manual measurement, please allow some errors.