Fans on MikroTik Cloud Router Switch 354-48G-4S+2Q+RM - volume level?

[SecCon]

I noticed that MikroTik Cloud Router Switch 354-48G-4S+2Q+RM has three fans and thus will of course generate a bit of noise, but how much?

Intended usage is Switch and nothing else.

BTW is not ROS overkill on a Switch?

SwOS is very basic

RouterOS gives you the ability to take advantage of all the features on the switch and a powerful management

In my case i use RouterOS in switches because this features:
Winbox
More Versatile Webfig
RoMON
Tools Graph
Tools Ping
Tools Telnet
MSTP
Full management Using Serial Console when needed
Can configure more users with different profiles

Appreciate your input, I made a separate thread of that: http://forum.mikrotik.com/t/so-why-do-i-want-to-run-ros-on-a-switch-when-swos-is-just-fine/149970/1