This is a new aftermarket replacement for the GL1200 Goldwing Igniter (CDI) which has been discontinued by Honda.
The original ignition unit may have been stamped with one of these numbers:
TID14-32, MG9, AKBZ17, AKBZ40, 131100-3820, 131100-4260, 131100-4261
This unit will plug right into your existing wire harness. It may require custom mounting.
This unit has some improvements over the stock unit: