Pontypridd's hard fought 17-8 victory over Bridgend Athletic has earned them a home draw in the next round against either Bargoed or Neath, while Swansea, who won 29-22 at Cross Keys are also at home against either Carmarthen Athletic or Bedwas.
Merthyr, of SWALEC Division 1 East, will be confident of making further progress after disposing of Division 1 East league leaders Newbridge in the last round. They travel to meet the winners of struggling Premier outfit Glamorgan Wanderers and Corus, of SWALEC Division 1 West.
Newport will entertain Division 1 East side Blackwood if they defeat Felinfoel, while Bridgend could renew old acquaintances with Cardiff should the Blue and Blacks get the better of Beddau.
SWALEC Cup Round Three
Ties to be played the weekend of 19 February, 2011
Pontypridd v Bargoed / Neath
Glamorgan Wanderers / Corus v Merthyr
Swansea v Carmarthen Athletic / Bedwas
Waunarlwydd / Bonymaen v Aberavon / Bedlinog
Llandovery / Llanharan v Maesteg / Carmarthen Quins
Felinfoel / Newport v Blackwood
Beddau / Cardiff v Bridgend
Tonmawr / Llanelli v Pontypool