The recommended power adapter for the SPD::ONE ELECTRO pad is the BOSS PSA series.
Note: The SPD::ONE ELECTRO draws 300 mA. Please use a PSA-S/S2 adaptor (Output: 500 mA).
They can be purchased at any Roland/BOSS dealer.
CAUTION: The use of any other power adapter may cause malfunction and/or permanent damage to the product.