https://www.anjoycycle.com/products/shimano-internal-2-port-junction-for-ew-sd300-ew-jc302
Shimano Internal 2-Port Junction for EW-SD300 #EW-JC302
SHIMANO - E-TUBE - 2-Port Junction Internal 2-Port Junction for EW-SD300 Updated with new electric wire SD300
shimanointernalportjunctionew