36 years after the last cup final in 1975, Aberavon reached the 2011 final, but just lost to Pontypridd by 24-35 at the Millennium Stadium after a late try was ruled out.
Carter, Strong and Sam Williams scored tries and full back Jarvis kicked three conversions and a penalty.
In the semi-final, tries from Chris Lewis and Strong with eight points by Jarvis beat the ‘Drovers’ by 18-12 on Carmarthen Park.
In earlier rounds, the ‘Wizards’ defeated Bedlinog (74-6); Waunarlwydd (33-19 away) and Cardiff (19-17 away).
The Cup final side was: – Matthew Jarvis; Richard Carter, Will Price, Ashley Beck (Liam Gadd), Ricky Thomas; Jamie Davies, Dan Davies (David Pritchard); Neil White (Lloyd Howell), Marc Breeze, Tony Edwards (James Jones), Ian Moore (Aaron Bray), Sam Williams, James King (Richard Morris), Nathan Strong, Chris Davies (captain) (Daryll Thomas).