30mm Ultra High Speed - Motor Cooling Fan One of the most popular size for motor and heat sink, although its looks very similar to what's on the market, but its performance is above its classes. Max. RPM in 24,000 @8.4V. For greater ease of use, different extension are included in the packing.
 
Size : 30mm x 30mm x 10mm
Operating Voltage : 6V-8.4V
RPM @ 8.4V :22,000 ~24,000
Current @ 8.4V: ~0.43A
Axial option: Available in ball bearings