Ulster's stand-in captain Justin Harrison takes a lineout ball one-handed under press from Cardiff's James Goode.
Blues number eight Mark Lewis, who was one of their best performers in Belfast, has his progress halted by Paddy Wallace.
Lewis is caught in a tackle by Ulster flanker Neil Best, who scored his first try of the season on Saturday. That score means the 27-year-old Best has grabbed a try in each of the last five seasons of Celtic League rugby, tallying up 11 touch downs in all.
Ulster centre Paddy Wallace runs in for his try - which was also the Ballymena clubman's first of the current campaign.
Ulster full-back Bryn Cunningham clashes with Cardiff's Jamie Robinson for a high ball.
Ulster's Andrew Maxwell is challenged by Cardiff wide man Chris Czekaj.
Ulster and Ireland hooker Rory Best gets to grips with Cardiff full-back Nick Macleod, as lock Matt McCullough closes in.
Ulster's impressive young flanker Stephen Ferris congratulates Andrew Trimble on scoring a try. Trimble, who turns 22 on Friday, has now scored two tries in three league appearances this season.
Bryn Cunningham pounces on the ball to score Ulster's bonus point try, just ahead of Cardiff out-half Nicky Robinson.
**All photos by Morgan Treacy of Inpho Photography**