The Vevor 20' generator extension cord is a heavy-duty 50 amp power cord designed to connect a generator to a manual switch box, receptacle, or compatible RV-style inlet. It features 100% copper STW cable with a 125/250V rating and up to 12,500 watts of maximum power. The locking connector design helps keep the connection secure in demanding weather conditions. Its flexible cable and included strap make it easier to handle, store, and transport for home, jobsite, or travel use.