... speed :220RPM 4.Power: 3.5W 1)Model:dc usb mini fan electric motor2)Rotation Speed:2500+5%3)Current:550mA4 ... )Voltage:DC 5V5)Applicable for:USB Fan, USB mini Fan,Computer Fan, Mini Fan6)Economize on energy, environmental protection, low ... to request or customer's sample produce dc motor----apply for mini fan