CASIO | Musical Keyboard Compact SA-77AH2 | TE0087437Connector Type 3. 5mm Jack Number of Keyboard Keys 44 The 44 key SA 77 digital keyboard offers all discoverers of music the essentials for playing those first tunes. 100 tones, 50 rhythms and 10 integrated songs provide variety the LSI sound source and the 8 note polyphony ensure good sound quality. The LC display of the electric keyboard helps with selecting and calling up the different music options. The electric keyboard SA 77 also includes a