The Comodoro USB POWER CONVERTER transforms the 5v of any USB port into 9v perfectly filtered for use with your pedals.

HOW TO CONNECT IT?

You can use any USB source:
Directly connect a mobile phone charger with microUSB.
With a USB wall transformer.
Connect it to your computer or desktop USB port.
Use it anywhere with a POWER BANK, laptop, tablet or your car's USB charger.

INPUT: USB 2.0 or micro USB from 1 to 2.4 A.
OUTPUTS: (3X) DC JACK- 5.5 x 2.1mm, negative center.
                  3 cables included, 2 of 40cm and one of 120cm.
Each output supports a maximum of 150mA.

All the outputs have the negative in the center, most of the pedals use this configuration.

Check the polarity of your pedal before connecting it, if you have a positive pin in the center connect an appropriate polarity inverter.

You can use a daisy chain cable to connect several pedals to the same output as long as the total consumption does not exceed 150mA.
 
Size: 94x40x32mm