Corsair H50 comes with a single seven-blade fan measuring 120x120x25 mm:
Although it is of solid black color and doesn’t bear any info about its original manufacturer, we managed to find out that it was made by Yen Sun Technology (YS Tech). In fact, we have already tested this exact fan (KM121225LB) under Akasa brand name in our article called “Be Cool: Ultimate 120/140 mm Fans Roundup”.
The fan uses double ball bearing with 80,000 hours MTBF. The fan rotation speed controlled by pulse-width modulation method (PWM) in our case varied from 720 to 1650 RPM. The level of noise generated by the Corsair H50 fan is not mentioned anywhere in the official specs, and there are no data in the YS Tech specs for this particular fan model with this rotation speed and PWM control option.