Leinster moved confidently into the last eight of the new Celtic League with a comfortable victory over a woeful Swansea side at St Helen's.
The provincial side ensured a home draw in the quarter-final after finishing their pool unbeaten.
They could even afford to rest the majority of their international stars and still have enough firepower to douse a hugely disappointing home display.
Leinster dominated in all phases and out-scored the home side four tries to none in a match littered with errors.
Munster racked up a half century to against Cardiff at Thomond Park today, winning 51-10, to also book a home quarter-final berth.
The Welsh visitors were put to the sword by the formidable provincial side which ran in eight tries in this one-sided affair.
David Humphreys' outstanding display ensured Pontypridd's Pool A Celtic League fixtures ended with a 29-20 defeat.
As well as scoring 14 points with his accurate kicking, the Ulster fly-half shone in both attack and defence.
PA