Adapter rating: Worldwide 100V ~ 240V 50/60Hz, output: 12V 2A, 24W. Safety & stability: UL listed, FCC certified, over-voltage, over current, short circuit protection, power cord length about 47 inches CONNECTOR SIZE: 5.5 mm x 2.1 mm barrel connector, centre positive COMPATIBILITY: Power supply works with Yamaha keyboards, compatible with YPG-225, YPG-235, PSR-E253, PSR-E263, PSR-E353, PSR-E363, PSR-EW300, PSR-E453, NP12, NP32, YPT-200, YPT-210, YPT-220, YPT-230, YPT-240, YPT-300, YPT-310, YPT-320, YPT-330, YPT-340, YPT-400, YPT-410, YPT-420, YDD-40, YDD-60, EZ-200, EZ-220, DGX-220, and DD-45, DD-65, DD-75. Also works with Medela / Spectra breast pumps, router, switch, CCTV camera, networking HUB, electric toys, router, LED string light, Polycom SoundPoint telephone.