| Form Factor | Keyboard |
| Dimensions | 980 mm x 236 mm x 85 mm |
| Weight | 5.3 kg |
| Sound chip | Yamaha YM3812 (OPL2) |
| Keyboard | 49 keys |
| Connections |
|
| Links | https://uk.yamaha.com/files/download/other_assets/2/318182/PSR21E.PDF |
| Form Factor | Keyboard |
| Dimensions | 980 mm x 236 mm x 85 mm |
| Weight | 5.3 kg |
| Sound chip | Yamaha YM3812 (OPL2) |
| Keyboard | 49 keys |
| Connections |
|
| Links | https://uk.yamaha.com/files/download/other_assets/2/318182/PSR21E.PDF |