Anyone using these too? RAC03-05SER Please login or register to see this image. /monthly_2017_11/41kZ-B8JygL._AC_US218_.jpg.ffea730ce4292700f79937d81bfa72de.jpg" />  Please login or register to see this attachment. Please login or register to see this attachment.   I use one of them inside the wallbox to power the USB dongle of my Qubino weather station. Works good so far, but probably more expensive than a simple USB Charger