Shimano SM-PCE1 PC Link Cable Description: The Shimano SM-PCE1 PC Link Cable is the cable that attaches the SM-PCE1 PC Linkage Device to the bicycle or to the battery. It features a EW-SD50 type E-Tube end that attaches to the battery or bicycle, and a Mini B type end for connecting to the SM-PCE1 Linkage Device. If a PC link cable has become damaged or has gone missing, this factory replacement part will allow the SM-PCE1 PC Linkage Device to communicate with your computer for system updates and fine tuning. Features: Includes just the SM-PCE1 PC Link Cable SM-PCE1 PC Linkage Device and other Di2 accessories sold separately