This is a cooling fan, selected , lightweight and so portable, and odorless. It's made with excellent workmanship, looking fabulous and awesome. A nice computer accessory for you. Features - ColorBlack - Material: . - Size: 8.00X8.00X2.50cm/3.14X3.14X0.98inch - Bearing: Hydraulic bearing. - Standard voltage: 12V. - : 0.41A. - Speeds: 4000RPM. - : 38.55CFM. - Maintain continuous operation time: . - Fan interface: motherboard 4-pin interface. - Additional functions: Support speeds measurement, support PWM intelligent control. - Made of and wear-resistant materials, this cooling fan is durable and practical for use. - Cool and stylish appearance, decorative and creative, practical and convenient to use. - Convenient and practical, easy to install and use, and quickly dissipating heat. - Great performance and add unique style to your computer cases, very cool and practical. - Shock-absorption and anti-skid, effectively inhibit the resonance of the case, make the fan operate more quietly. Package list: 1 x cooling fan