iS50B
| Manufacturer | Korg |
| Function | Synthesizer |
| Produced | 1999 |
| Country | Japan |
| Form Factor | Keyboard |
| Signal Path | Digital Hardware (including Analog Connections) |
| Notes | iS50B boasted the same specs as the iS50, but in a Dark Blue chassis. |
| Manufacturer | Korg |
| Function | Synthesizer |
| Produced | 1999 |
| Country | Japan |
| Form Factor | Keyboard |
| Signal Path | Digital Hardware (including Analog Connections) |
| Notes | iS50B boasted the same specs as the iS50, but in a Dark Blue chassis. |