Leinster have made two changes to the side that defeated Cardiff Blues as Leo Cullen's side look for back-to-back wins over Welsh opposition as they take on the Newport Gwent Dragons.
Prop Marty Moore makes his first start since playing against Toulon last April after recovering from injury, while Isaac Boss makes his first start of the season.
Isa Nacewa captains the side from full back, in a back three that also features Fergus McFadden and Garry Ringrose.
Noel Reid, Ben Te'o and Cathal Marsh make up the remainder of the backs, while the pack has a mixture of experience and fresh faces, with Ross Molony making his second ever RDS start in the second row.
James Tracy and Rhys Ruddock are included in the match day squad for the first time this season, with Ruddock hoping to make his first appearance for the province since March, when he featured against Llanelli Scarlets.
Leinster: Isa Nacewa (captain); Fergus McFadden, Ben Te'o, Noel Reid, Garry Ringrose; Cathal Marsh, isaac Boss; Michael Bent, Aaron Dundon, Marty Moore, Ross Molony, Mike McCarthy, Dominic Ryan, Josh van der Flier, Jack Conan.
Replacements: James Tracy, Peter Dooley, Jamie Hagan, Rhys Ruddock, Dan Leavy, Luke McGrath, Ross Byrne, Cian Kelleher.
Pat Lam has made three changes to the Connacht side that started against Glasgow ahead of Saturday's clash with Cardiff Blues.
Prop Finlay Bealham makes his first start of the season, replacing the injured Rodney Ah You.
Local man Eoin McKeon returns from an injury lay-off to start at Number 8, alongside captain John Muldoon and Nepia Fox-Matamua.
Ireland international Kieran Marmion starts at scrum half in an otherwise unchanged back division.
Aly Muldowney and George Naoupu are both in line to make their first appearances of the season from the bench, while 19-year-old prop Conan O'Donnell is named in the squad for the first time.
The Sligo teenager has made nine appearances for Ireland under 20s, and coach Lam believes he wus ready to step up to PRO12 level.
"It's probably a bit earlier than Conan expected to be playing PRO12 rugby but he is a talented player who has a lot of experience with the under 20's.
"He has prepared well this week in training and I have no doubt he will grab the opportunity with both hands if he's called on tomorrow."
Connacht: Tiernan O'Halloran; Danie Poolman, Rory Parata, Bundee Aki, Matt Healy; Jack Carty, Kieran Marmion; Denis Buckley, Tom McCartney, Finlay Bealham, Quinn Roux, Andrew Browne, John Muldoon (captain), Nepia Fox-Matamua, Eoin McKeon.
Replacements: Dave Heffernan, JP Cooney, Conan O'Donnell, Aly Muldowney, George Naoupu, John Cooney, Craig Ronaldson, Fionn Carr.
Andrew Trimble will become the most capped Ulster player of all time when he lines out against Benetton Treviso at Kingspan Stadium on Friday, kick-off 6.05pm.
The Ulster and Ireland winger will play his 190th game for his province, passing the record that he currently shares with Paddy Wallace.
Trimble will start on the right wing, with Craig Gilroy selected on the left flank. Louis Ludik completes the back three.
Luke Marshall and Stuart McCloskey continue their partnership in midfield, with Paul Marshall and Peter Nelson paired in the half-backs.
Up front, Andrew Warwick and Wiehahn Herbst are selected either side of captain Rob Herring, who is named at hooker.
Ireland international Dan Tuohy returns to the starting XV and starts alongside Peter Browne in the second row.
With Nick Williams unavailable for selection due to personal reasons, there is a change in the back row, with Robbie Diack named on the blindside, Sean Reidy coming in at openside and Roger Wilson starting at the base of the scrum.
Ulster: Louis Ludik; Andrew Trimble, Luke Marshall, Stuart McCloskey, Craig Gilroy; Peter Nelson, Paul Marshall; Andrew Warwick, Rob Herring (captain), Wiehahn Herbst, Peter Browne, Dan Tuohy, Robbie Diack, Sean Reidy, Roger Wilson
Replacements: Paul Jackson, Callum Black, Bronson Ross, Lewis Stevenson, Clive Ross, David Shanahan, Sam Arnold, Rory Scholes
Munster coach Anthony Foley has made eight personnel changes to the side that defeated Ospreys over a fortnight for the visit of Glasgow Warriors to Thomond Park on Friday at 6pm.
An all new front row sees James Cronin and Stephen Archer start on either side of Duncan Casey, with Archer and Casey both making their first starts of the season.
Mark Chisholm and Dave Foley again form the second-row partnership with the reintroduction of CJ Stander at number eight the only change in the back row.
Dave O'Callaghan and Jack O'Donoghue continue at six and seven respectively.
Duncan Williams and Ian Keatley return at half-back, with Tyler Bleyendaal switching to inside centre for the first time. The New Zealander is partnered by David Johnston in the midfield on his second league start.
The only change in the back three sees Gerhard van den Heever starting on the left wing. Andrew Conway continues on the right flank, with Felix Jones captaining the side from full-back.
Munster: Felix Jones (captain); Andrew Conway, David Johnston, Tyler Bleyendaal, Gerhard van den Heever; Ian Keatley, Duncan Williams; James Cronin, Duncan Casey, Stephen Archer; Mark Chisholm, Dave Foley; Dave O'Callaghan, Jack O'Donoghue, CJ Stander
Replacements: Mike Sherry, Dave Kilcoyne, BJ Botha, Robin Copeland, Jordan Coghlan, Cathal Sheridan, Rory Scannell, Shane Monahan
