Yes, the MaxxAir Delux is a two arm powered support. It fits the standard 14" x 14" opening.
The hole may be pre wired for a fan. To check, just take the interior trim piece down (4 screws holding it ) and you'll see some type of metal or possibly wood surrond. If wires are not visible, run your hand behind the casing and if there you should feel them. If not, you can usually tap into a nearby ceiling light for power.
For the install, the fan pretty much comes with everything you'll need. Only extras...a tube of Dicor Self Leveling Caulk to caulk the seam and a dab over each screw head. Also, get a #2 square drive bit. Most screws on rv's are a square head design, not phillips or blade. A #2 will fit 95% of the screws on your rig.
Steve & Cheryl + Charlie & Casey, our furry kids.
2012 Forrest River Lexington 283ts
Toad, 2013 Subaru XV Crosstrek
Camping trips this year so far...8