MAX Speed Controller Air Blower  (Corded & Cordless)

Please see the description for features; product details will be sent according to the first image.-----5-----6----- DC 5V USB Brushless Cooling Fan 50MM 60MM Blower 80MM 90MM 120MM Radiator Cooler Heatsink-----Features：-----100% brand new, high quality.-----A variety of parameters are available.-----USB port, plug-and-play, very convenient.-----Suitable for many devices that require cooling. For example, computer cases, medical sterilizers, kitchen appliances, etc.(When using, pay attention to your devices whether the rated current can support the normal operation of the fan.)-----Parameters:-----Dimensions: 50mm / 60mm / 70mm / 90mm / 120mm-----Connector: USB-----Rated Voltage: DC 5V-----Bearing Type: Sleeve /Dual Ball-----Life: 35000 hours / 50000 hours-----Cable Lenght: 30cm / 35cm / 50cm-----Package included:2PCS Cooling Blowers (If you buy one speed controller or extension cable option, you will get only one)-----Caution:-----Compared to other bearings, double ball bearing fans produce slightly more noise, but last longer.-----Compared to axial fans, blowers produce slightly more noise when working.-----The current on the label will be updated from time to time, but keeping the other parameters the same.-----We can customize according to customer"'"s requirement, please