The EW-RS910 can be installed in the handlebar end or in the frame. It offers an interface for charging the battery and a charge indicator. With the EW-RS910's button and the STI's X and Y switches, you can adjust the front and rear derailleur.
Designed for use as an end on racing handlebars, the RS910 junction is a 2-port option for internal E-TUBE cable routing, charging, battery monitoring and shifting mode selection