Amazon.com: SKKSource 5ft UL 12V 2A-3A AC Adapter Charger Compatible with Casio AP-250 AP-250BK AP-250BN Power with Extension 6ft Connectcor Plug Cable : Electronics
Kraft Music - Casio Celviano AP-250 Digital Piano Demo with Adam Berzowski - YouTube
Casio AP-250 Operating instructions : Free Download, Borrow, and Streaming : Internet Archive