Adaptor: Nexus male to Nexus male | 4-way | No resistors

Most common use to connect STILO helmet's built-in communication system to rally amplifiers with nexus sockets or radio communication systems for Circuit, Rallycross, Autocross (with 4-way female).
Shaft diameter: 7.1 mm

WARNING: This item are not compatible with Trophy type sockets/connectors (6.35 mm). See picture HERE.