Computer System Cooling Parts features: 12cm 3 Pin 4 Pin LED Backlit CPU Cooling Fan for CPU PC Computer Mining Case Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Specification:1. Item: Cooling Fan2. Material: ABS3. Color: Blue4. Cooling Method: Air Cooling5. Rated Voltage: DC 12V6. Input Power: 3.6W7. Input Current: 0.18A8. Speed: 1200RPM ± 10%9. Air Volume: 53.02CFM10. Air Pressure: 1.073mm-H2011. Noise Index: ≤16dB (A)12. Estimated Life Expectancy: 50000h13. Size: (L)X(W)X(H) 12X12X2.5cm / 4.72''X4.72''X0.98''(appr.) Features1. Ultra quiet working with antiskid design.2. With LED glow in the dark environment, pretty cool.3. 3pin and 4pin interface for convenience and cable management.4. Fast cooling to keep the mining machine operate normally and durable.5. Electronic commutation outer rotor DC fan, a complete electronic commutation components. Package included:1 * Cooling Fan4 * Screws