EW-SD300-I is a power cable from Shimano for internal routing in the frame, which was developed with regard to the Dura-Ace and Ultegra Di2 12-speed road bike derailleurs and the MU-UR510 hub gear motor unit respectively.

Features

• More compact design makes new electric components smaller and lighter
• Will potentially expand the future capabilities of DI2 systems
• For internal routing usage

Specifications

• Cable Length: 1000mm
  
• Cable Routing: Internal
  
• Compatiblity: Dura-Ace Di2 and Ultegra Di2 Systems
• Number of Plugs: 2
  
• Cable Diameter: 2.4 mm
  
• Plug Diameter: 3.45 mm