2pcs Modulo di Alimentazione DC 9V 12V 18V 20V a 5V con 4 Porte USB Modulo Alimentazione
DC 9V 12V 18V 20V to 5V Power Module with 4 USB Ports DC-DC power module. 2 DC 9V 12V 18V 20V to 5V Power Module with 4 USB Ports. One of the four USB interfaces reserving the divider resistance for your DIY.