Shimano SM-EW90-B X5 Cable Junction Box

Shimano Di2 Junction Box

FEATURES

• All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions.
  
• Use the Di2 system checker to update the firmware of components from http://e-tubeproject.shimano.com/
  
• SM-EW90-B 5-Port Cockpit Junction Box connects up to 2 Di2 shifter pairs to the frame junction box via 5 SD50 E-tube wires
  
• OEM front wiring kit for Dura-Ace Di2 9070
  
• Battery level LED indicator
  
• Rear derailleur adjustment mode