This is a new aftermarket replacement for the CBX550 F2 Igniter (CDI) which has been discontinued by Honda.
The original ignition unit may have been stamped with one of these numbers:
30400-ME5-014, 131100-3540, 131100-3541, ME5
( The new part is shown on the orange part below)
This unit will plug right into your existing wire harness. It may require custom mounting.
This unit has some improvements over the stock unit: