NU-CORD 94551M 40-Feet 30-Amp Rv Cord with Marine Locking Connector Plug: TT-30P Receptacle: L5-30R 30 amp 125V 10/3 AWG wires Cord type STW Plug: TT-30P Receptacle: L5-30R 30 amp 125V 10/3 AWG wires Cord type STW