Jack Carty marked his return to the Sportsground after his Irish breakthrough by becoming the province's top scorer.
The 26-year old couldn't have scripted it better as he came off the bench to edge Connacht back in front after they had surrendered a 14-0 lead and then he set up the clinching try for Matt Healy.
But Carty didn't end there and he crowned the win and his return by getting the bonus point in the final play with a converted try that saw him surpass Ian Keatley as Connacht's all-time top scorer.
The confidence gleaned their excellent recent run of form was apparent early on as Benetton took the game to Connacht but while they enjoyed 76 per cent possession they found themselves 7-0 down towards the end of the opening quarter.
Caolin Blade, fresh from his first involvement in an Irish squad, spotted the lack of pillars in the Benetton defence and darted from a ruck just outside the 22 to sidestep Ian McKinley and dive over between the posts.
Kyle Godwin converted to make it 7-0 and Benetton, who had seen a couple of multi-phase attacks inside the home 22 come to nothing, were clearly deflated.
Healy pounced to touch down for Connacht's second try, with Godwin converting for 14-0.
Benetton rallied superbly but the introduction of Carty saw Connacht wrest back control.