Shimano EW-JC302 Di2 Junction Box - 2 Ports, Use With EW-SD300

The Shimano EW-JC302 is a 2-port inline junction box designed for connecting two EW-SD300 E-Tube wires within Shimano's Di2 electronic shifting systems. Its compact design allows for discreet internal frame or handlebar installations, facilitating clean and efficient cable management. This junction box is particularly useful for extending wire lengths when standard options are insufficient, ensuring seamless integration of Di2 components across various bicycle configurations.