An imperious second half performance from Cardiff RFC made it three wins in a row to start the season as Llanelli were downed in Parc y Scarlets.
Steve Law was able to welcome back Sam Beard to the centre, after being unavailable for the trip to RGC in the Specsavers Cup, while Callum Bradbury was not involved so Sam Pailor stepped into the second row and Alex Everett played at blindside.
It was a slow start to the game as the first 25 minutes remained scoreless, but Barney Nightingale sparked the game into life as he crossed, with Gareth Thompson converting for a 0-7 lead.
Unfortunately it was Llanelli who seemed to be the brighter after waking up, as unconverted tries from Tom Rogers and Nathan Hart gave the hosts a 10-7 lead going in at half-time.
Once again points were hard to come by early in the second half, but Law had experience to come off the bench as James Thomas and Tom Habberfield entered the fray, and soon the Blue and Blacks were ahead thanks to an experienced starter in Sam Beard.
His try was converted by Thompson and he was back on the tee shortly after when Habberfield went over to score his first try for the club, the fly-half again adding the extras for a 10-21 lead.
Morgan Allen scored the bonus point try for Cardiff the make the game safe, before Habberfield scored a second of the game, to secure a 10-33 win to take back down the M4.
A 0-26 second half scoreline was an impressive way to secure victory for the Blue and Blacks, who now sit top of the Indigo Group Premiership courtesy of the bonus point, with Aberavon the only other side to win both of their opening games.
Cardiff now enjoy a three-week break before Swansea arrive at the Arms Park on Saturday 12th October for a 2.30pm kick-off.