Features: 1. Suitable for: This cooling fan is suitable for all children of TV routers and set-top boxes, etc. 2.Quiet heat dissipation: 18dba low noise, quiet heat dissipation, save quiet environment, make DIY so easy. 3. Long-life bearings: Select high-quality materials to manufacture long-life hydraulic bearings. 4.Satisfy a variety of power modes: The USB silent fan supports a variety of power modes, and DIY is more casual and convenient. 5.Material: This cooling fan is made of high quality material and durable. 6.This cooling fan is light and portable, easy to carry and use. Specification: Material: PVC Cooling method: air cooling Bearing Type: Double/Hydraulic/Sleeve Ball Bearing Rated voltage: DC 5V Connector: USB Line length: 80CM Rated current: 0.2-0.5amp10% Rated speed: 1500-2500rpm10% Airflow: 39.7-92.6cfm Noise: 18dba Life: 35000 to 50000 hours Size: 120*120*25mm Color: Black Package List: 1 Cooling Fan