This is a new aftermarket replacement for the CB700SC, CB750, CBX750 Igniter (CDI) which has been discontinued by Honda.
The original ignition unit may have been stamped with one of these numbers:
TID 14-29 MJ1, Hitachi, LTD Tokyo Japan
Replace OE #(s):
30400-MJ1-004, 30400-MJ1-005, 30400-MJ1-006
( The original part is show in the photo above)
This unit will plug right into your existing wire harness. It may require custom mounting.
This unit has some improvements over the stock unit: