In original packaging item, may require some assembly. See link for more details:

Electric Current: 50A - 125/250 Volt

https://www.vevor.com/power-outlet-box-c_12116/vevor-50-amp-rv-power-outlet-box-125-250-volt-enclosed-lockable-outdoor-rv-receptacle-box-nema-14-50r-weatherproof-electrical-panel-for-rv-camper-trailer-motorhome-electric-car-ul-listed-outlet-p_010714234337