Panasonic asfn8 series axial dc brushless fans 80 x 80 x 25mm panasonic asfn80391 this 12v dc axial brushless fan from the panasonic asfn8 series measures 80 x 80 x 25mm and has an operating speed of 2950rpm this model includes a sensor which prevents the fan from working when blocked panasonic asfn80391 axial 12v dc brushless fan 2950 rpm 80 x 80 x 25mm sensor