SHIMANO - E-TUBE - Electric Wire - External Routing Electric Wire SD300 for External Routing FEATURES - More compact design makes new electric components smaller and lighter - Will potentially expand the future capabilities of DI2 systems PRODUCT SPECIFICATIONS - MODEL NO EW-SD300 - SERIES EP8 EP800 Series - Remarks Cable length:150-1600 mm - Type For external routing - Compatible system E-TUBE system - SD50 port (pcs) 0 - SD300 port (pcs) 0 - SD50 connector (pcs) 0 - SD300 connector (pcs) 2 - Cord diameter 2.4 - Plug diameter 3.45