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.
Bona fide means in good faith in Latin. When applied to business deals and the like, it stresses the absence of fraud or deception. A bona fide sale of securities is an entirely aboveboard transaction. Outside of business and law, bona fide implies mere sincerity and earnestness.