Mystery Switch???

[EDNEWELL]

In my 17rb that switch turns on the WiFi booster.

[Sputnik]

IMG_0090.jpg (879.86 KiB) Viewed 35696 times

[Sputnik]

Can anyone tell me what this switch operates. (See photo below.)
Nothing happens when I flick it on or off. The switch to the immediate left operates the main lights in the center of the interior.
I'm wondering if it is a pre-wire off/on for an exhaust fan that I'd like to install in place of the 14x14 ceiling vent.
2017 Satellite 17fb
Thanks!
Greg M