Drobo 5N fan specification

Can anybody know specification of Drobo 5N case fan. I want to know fan speed, airflow and noise levels! Thanks

I suppose that 5N fan specification is same like Drobo FS fan.

Frame size: 120mmx120mmx25mm
Voltage: 12V
Air flow: 85 cfm
Noise level: 39.1
Connector type: 3 pin

Anybody can confirm that?

The 5N fan is much quieter than the FS fan, so it’s definitely a different model. I don’t think many folks have had a need to replace it as a result.