SHIMANO SM-JC40 Di2 External Frame Junction Box 4-Port

Description

SHIMANO SM-JC40 Di2 External Frame Junction Box 4-Port
Shimano Di2 Frame Junction Box
Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
Mounts underneath the bottom bracket shell
UPC code : 689228827448
Manufacturer # : ISMJC40
SPECIFICATIONS
Model : Shimano Di2 Junction Box
ALL ITEMS ARE BRAND NEW UNLESS SPECIFIED.
NEGATIVE FEEDBACKS CAN BE AVOIDED FOR BOTH PARTIES. EMAIL US BEFORE LEAVING A NEGATIVE FEEDBACK, IF YOU ARE EXPERIENCING ANY PROBLEMS WITH YOUR PRODUCT. PLEASE CONTACT US.
PLEASE READ DESCRIPTION CAREFULLY AS TO WHAT YOU ARE BUYING. ALL PRODUCTS ARE COMPLETE; AS IF YOU PURCHASE AT A RETAIL STORE UNLESS SPECIFIED DIFFERENTLY.
IF YOU ARE NOT SATISFIED, PLEASE RETURN THE PARTS FOR A FULL REFUND OF THE PURCHASE PRICE. ALL ITEMS MUST BE NEW UNUSED AND MUST BE IN THE ORIGINAL PACKAGING YOUR PRODUCT CAME WITH.
IF YOU HAVE ANY PROBLEMS WITH YOUR ITEM PLEASE EMAIL US SO WE CAN HELP.
WE WILL ANSWER ALL EMAILS AS QUICKLY AS POSSIBLE.