Cardiff slipped to a 40-14 defeat at Ravenhill as Ulster's class and experience of the PRO12 league shone through.
The Irish side were convincing winners of the British & Irish Cup clash as they fielded a side which contained 14 players who have taken part in regional rugby this season.
Against such a strong Ravens side, Cardiff faced a tough ask and Ulster were straight on the attack from the kick-off as the visitors conceded a series of penalties. An early attempt at goal by Stuart Olding put Ulster ahead after seven minutes and the home side went straight back on the attack with another successful kick at goal by Olding making it 6-0 after 10 minutes.
Cardiff had their own attacks and following several raids into the home half they were rewarded with a penalty shot at goal that Joe Griffin converted to reduce Ulster's lead to three. Ulster though, hit back. Another attack saw full back Adam D'Arcy cross the line to score Ulster's first try.
Griffin responded with a penalty for the Blue & Blacks before Ryan Harford was given a yellow card on the half hour for collapsing a maul. Ulster kicked to the corner and won a penalty try which Olding converted.
Chris Cochrane then showed great skill and strength to shrug off several Cardiff defenders and cross the line for Ulster's third try which Olding converted. Cardiff crossed for a consolation try in the 39th minute scored by Matthew Screech which saw Cardiff go into half time trailing by 14 points.
Ulster won several penalties in the opening minutes of the second half, Olding landing a straight forward kick in front to extend the lead. Cardiff made several changes early in the second half and won a penalty which Griffin slotted over to make score 28-14.
But Ulster pressure was to lead to their fourth try, Ali Birch picked and drove over the line to secure a guaranteed bonus point.
Straight from the restart Ulster scored again, Cochrane crossing for his second try. Olding converted to wrap up an easy win.
Wales reached their first semi-final since 2013 in the opening round of this season's HSBC World Rugby Sevens Series in Dubai. WRU TV's Graeme Gillespie recaps on what proved to be an eventful tournament
Wales and Ospreys back row James King, who came through the North Wales age grade system, nominated North Wales Regional Community Rugby Manager Marc Roberts, in the WRU's 'Diolch' initiative where squad players thanked those who played a part in their rise to the top.
Beating Merthyr has boosted Carmarthen Quins hopes of reaching a top eight spot in the Principality Premiership. Quins captain Haydn Pugh is delighted with his team's progress and is determined that everyone from the Under 6s through to the senior team, enjoys the ride.
When the Wales squad were asked to nominate individuals who played a big part in their early playing days, Wales and Dragons full back and wing Hallam Amos thought of his former Monmouth School rugby coach John Bevan.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series