SHIMANO SM-EW90-B Dura Ace DI2 Junction

SHIMANO's SM-EW90-B 5-port Junction A mounts neatly to the bike stem and connects with E-TUBE wires from DI2 shifters, accessory shifters, and the downtube junction wire. The SM-EW90 junction box features an integrated battery level indicator, charging port, and gear index setup switch.
Technical Information:
Type: external / for time trial handlebarsMount: under the stem (strap / clip)Number of E-Tube Ports: 5Number of E-Tube Connections: 0Number of Sprinter Shifter Connections: 0Number of Sprinter Shifter Ports: 0Number of Charging Ports: 1Compatible Cables: E-TubeCompatible Cables: EW-SD50Functions: current gear, Di2 battery status, adjust mode display, E-Tube connection