The ProLine Power 12" adapter has a 30 AMP (TT-30) Male Plug and a 50 AMP (14-50) Female Receptacle . The male and female ends have strong handles for ease of use when plugging and unplugging. Specs: Plug: TT-30 (30AMP) Cable: STW 3C / 10 AWG Connector: NEMA 14-50 (50AMP) 3750W/125V ETL Approved 100% Copper Wire