Boss PSA-230, 9V/500mA

The Roland Boss PSA240 adapter converts 230/240 volts AC current to 9 volts DC current. If you want to save money on batteries and ensure stable performance gig after gig, the Boss PSA 240 is the recommended power supply unit for Boss products including many Boss compact pedals, the DB-66/88 metronomes, DR-Series drum machines, BR series recorders, FC-Series foot controllers, MC-202, SH-101, SP-202, TR-626, and all TU-Series tuners. Capable of powering any Boss effect pedal, the Roland Boss PSA 240 can also power equipment with digital circuitry.

BOSS PSA 240 POWER SUPPLY FOR BOSS PEDALS FEATURES
Capable of powering any Boss effect pedal, including those with digital circuitry.
Converts AC current to 9 volts DC current.
Power supply designed to operate a multitude of Boss and Roland products.
Regulated with a higher milliamp rating for use with digital equipment.
Output: DC9V (regulated), 200mA
Tip negative, sleeve positive.
3 meter cable.
Small size (similar to a cell phone charger).