The 7-Way, on its own, will not engage electric brakes. You would need to add a brake controller. I would suggest a proportional unit as it will detect how hard you are braking in the truck and adjust the braking power on the trailer to match. It will yield a smoother braking system.
bona fide (not comparable) 1  In good faith. 2  Genuine; not counterfeit.
Word Origin and History for bona fide. 1540s, Latin, literally in good faith, ablative of bona fides good faith (see faith). Originally used as an adverb, later (18c.) also as an adjective. The opposite is mala fide.