This kit is included with a RIGblaster Pro.

Enable keyboard CW with the following products:
RIGblaster Advantage
RIGblaster Plus II
RIGblaster Plus
RIGblaster Plug&Play
CWswitch

It connects KEY OUT of the RIGblaster Plus II and Plus, CW/FSK of the RIGblaster Advantage, CW OUT of the RIGblaster Plug&Play, or KEYER OUT (A/B) of the CWswitch to the straight Key Jack of your radio.