Rockboard IVC 200 Int Voltage Converter; voltage converter / DC-DC booster, boosts 9-15V input to 18V output, can be used with many analog OD/boost/distortion/fuzz pedals (check manufacturer’s specs), input 9-15 VDC, 300-500 mA, 2.1 x 5.5 mm barrel jack, polarity (-) center, output 18 VDC, 200 mA, 2.1 x 5.5 mm barrel plug, polarity (-) center, dimensions (L x W x H) 55 x 30 x 22 mm / 2.2” x 1.2” x 0.9”, weight: 30 g / 1 oz., incl. 1 x power cable, 60 cm