Mains switch-mode power adaptor to operate 9Vdc effect pedals up to 500mA (polarity is pin-negative) Suitable for NU-X effect pedals and most other brands Power supply: 100-240Vac, 50/60Hz Output voltage: 9Vdc Output current: max.500mA Polarity: Pin-negative Dimensions: 90 x 80 x 60mm Connector: DC jack 5.5 x 2.1mm Weight: 90g