Louis Ludik’s pair of tries helped Ulster to resist a 2nd-half fightback from Cardiff Blues and strengthen their position in the Guinness PRO12 Top 4.
Fullback Ludik scored a try in either half to supplement finishes from Craig Gilroy and Paul Marshall as the hosts picked up what could prove to be a very valuable try bonus point.
Tom Isaacs and Alex Cuthbert crossed for the Blues as they showed real resilience after the break, but the 18 / 0 halftime deficit ultimately proved too much.
Glasgow Warriors’ draw at Leinster means Neil Doak’s side stay second, but they will be pleased to have forged a bit of a buffer between themselves and the chasing pack
Bottom of the table France travel to Dublin to face fourth placed Ireland in the RBS Six Nations Championship on Saturday. This is part of the fifth round of fixtures of this year’s Championship. The match is scheduled to kick off at 19.00 South African Time.
Jonathan Sexton has been ruled out of Ireland’s Six Nations clash against France on Saturday while Paddy Jackson is also a fitness concern.