Shimano EW-JC200 E-Tube 2 Port JunctionThe EW-JC200 allows user customisation of their Di2 wiring across all of the E-Tube systems. It features a female-to-female junction box that allows connection of 2 wires to extend their length. This is necessary when working with bigger frames or for complex routing of add on shifters.Features: For extension purpose female/femaleA 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.