Convertitore Modulo Step-up USB Power Boost Line Adattatore Convertitore USB 5V a 9V/12V
USB 5V to 9V/12V boost cable 5.5X2.1MM DC port 1 drag 1 red digital display. USB 5V to 9V/12V boost cable 5.5X2.1MM DC port 1 drag 2 red digital display. USB 5V to 12V Booster Cable 600mA 5.5X2.1MM DC Port.