Fan & thermostat for cabinet cooling

I want to put some devices like NVR, modem, router, et cetera in a closet.

I'm having an electrician install a 240v AC power socket in the closet.

I'd like to cut a hole in the top of the closet through to the ceiling cavity for an exhaust fan.

I'm hoping to decommission my home server so I'd like to avoid having to run exhaust fans from a computer / PC power supply.

With all that in mind, I'm looking for one or more devices that will allow me to run two PWM case fans with thermostat from 240v.