Shimano, ISMEW90B, SM-EW90B, 5-port electric wire junction for TT handlebar
Shimano
Price: $180.00

Front junction box for Di2 e-Tube wires SM-EW90-A = 3 port (To connect regular road dual levers and climbing/sprinter swtiches) SM-EW90-B = 5 port (To connect dual control levers (road or triathlon) and satellite switches and additional TT/triathlon switches)