I got this today used! The CasioTone 401: Great keyboard, and the auto accompaniment works a treat. Not to mention the warm colors, and my favorite, the funny button. : r/synthesizers
Rare Casio CA-401 Tonebank PCM Synth with Stereo Chorus and | Reverb
Casio Cd-401 Module246 1984 Vintage Digital Watch 1st Databank Calculator for sale online | eBay
Amazon.com: 6ft Extra Long AC Adapter Replacement for Casio CTK-401 CTK401 Keyboard Power Supply Cord Charger : Musical Instruments