whadda modulo di potenza a 2 canali per breadboard 3.3v 5v

this breadboard 3.3v 5v power supply module fits the power rails on most breadboards. it also features a mini usb power port to supply power to external devices. informazioni sul prodotto sprachen der gebrauchsanweisung englisch,prim rfarben blau,zus tzliche farben schwarz, wei ,zus tzliche farben d