Channel na USB gada ne sabon abu gada kayayyakin, shi ne dace da man fetur, sinadaran, yadi, wutar lantarki, inji, sufuri, farar hula da sauran filayen, shi zai iya maye gurbin na yanzu gargajiya karfe gada, shi ya dade da aka yadu amfani a cikin Amurka, Japan, Jamus da sauran yankuna da suka ci gaba