Versatile Power Supply for Roland Keyboards and Recorders The Roland PSB7-120 12V power supply is a replacement accessory for various other Roland power supplies and fits many GearNuts-favorited keyboards and recorders. Have questions on compatibility? Please call your GearNuts Sales Engineer, and they'll be happy to clarify. Roland PSB7-120 12V Power Supply Features: Replacement power supply for PSB-120, ACB-120, ACF-120, ACK-120, and ACI-120 Compatible with many keyboards and recorders, including C-30, FP80, RP700 series digital pianos, BK5, BR, CD-2, FP-7, FP-30, FP-50, FR-3X, Prelude, RP-201, and RP-301