Mega ROM
| Manufacturer | Yamaha, Metrasound |
| Function | Accessory |
| Country | Germany |
| Form Factor | Part |
| Signal Path | Digital Hardware (including Analog Connections) |
| Notes | DX7 Cartridge 32 soundbanks (1'032 patches) DX7 ROM cartridge |
| Manufacturer | Yamaha, Metrasound |
| Function | Accessory |
| Country | Germany |
| Form Factor | Part |
| Signal Path | Digital Hardware (including Analog Connections) |
| Notes | DX7 Cartridge 32 soundbanks (1'032 patches) DX7 ROM cartridge |