9v 1a Ac Dc Adapter For Casio Tonebank Ct-637; Casio Ct-350, Ca-301, Ca-401,cps300,mt-740 Keyboard 9v Dc Power Supply Cord - Pc Hardware Cables & Adapters - AliExpress
CASIO MT-740 CASTELLANO user manual - User manual
Casio MT-740 465 Sound ToneBank 61-Key Digital PCM Piano Keyboard w/ MIDI | Reverb
CASIO MT-740 (sound and styles demonstration) HiQ sound and playing - YouTube