AC Power Adapter for entry-level Portable Keyboards lighted guitars and digital drums. Don't gamble with your musical instrument. Use only a genuine Yamaha power adapter. The PA-130 adapter replaces the PA-3C and is environmentally friendly by reducing the power when the musical instrument is turned off saving you money! So don't get caught losing that #1hit song you just wrote. Plug it in! The PA-130 is designed to eliminate your constant need for fresh batteries by using efficient AC operation.