This is a complete Fusion Engine Rev-2 FCU Upgrade Kit.
The upgrade kit includes all the parts necessary to convert your Rev-1 FCU to a Rev-2.
The kit includes:
1x Updated Switch Board
1x Revision 2 Fire Control Unit
1x Revision 2 Wire Harness
•Lipo Protection (Default is off)
•I/O Port for Future Accessory Board (Box Mag, Tracers, etc)
•Full Auto / Semi Auto Reversal Option