Thermaltake Mobile Fan 12 AF0007 Case Fan. USB Powered, 12CM Adjustable Speed Fan With Retractable USB Cable Type: Case Fan Bearing Type: Sleeve RPM: 800 ~ 1,500 RPM ± 250 RPM Air Flow: 66.55 CFM Noise Level: 19 ~ 33.5 dBA Power Connector: USB 1.1/2.0 Color: Orange Compatibility: Case