This is a 3V fixed-voltage MyVolts-branded power supply adaptor designed to meet exactly the power specification of your Sony AC-MZR55 PSU part.
myVolts 3V power supply for Sony MZ-N710, MZ-N900, MZ-N910 Minidisc player
myVolts 3V power supply for Sony AC-ES305, AC-ES3011K2, AC-E30A110 PSU part
myVolts 3V power supply for Sony AC-ET305K, AC-ES305, AC-ES305K PSU part
myVolts 18V power supply for Joyo Power Supply 2 Pedal power
myVolts 15V power supply for Tiptop Audio uZeus Modular power supply
ATX Power Tester Meter Measuring For PC 12V 5V 3.3V Power Supply Tester LED
