Shimano electric junction box ew-rs910 for dura-ace ultegra grx di2

Product Description Shimano Electric Junction Box EW-RS910 for Di2 - Junction A for internal mounting The junction box EW-RS910 by Shimano is a Di2 connection point, also called junction A, which is installed internally. You can choose between the handlebar tube and the frame or down tube as mounting positions. The junction has two E-Tube connections and one charging connection. It determines data such as the current gear position and the battery charge level. The firmware can be updated via the E-Tube platform. Information regarding the return of batteries and electrical equipment:Information on the return and disposal of batteries and electrical equipment can be found here. Technical Information:Type:internalMount:frame or handlebar (inner-ø 20.5-21.5 mm, outer-ø 23.8-24.2 mm; min. 40 mm insertion depth)Number of E-Tube Ports:2 (EW-SD50)Number of Charging Ports:1Functions:current gear, Di2 battery status, adjust mode display, E-Tube connection, Synchro ShiftCompatibility:Dura-Ace Di2 R9150Ultegra Di2 R8050GRX Di2 RX815Features:E-Tube project ensures firmware updatesManufacturer Number:I-EWRS910 Contents:1 x Shimano Di2 EW-RS910 junction box Weight: black: 11 g Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com