Shimano PC connection device Micro USB port Improve communication quality. Easily find and diagnose trouble points. Battery consumption check function. Possible by using E-TUBE software. [Included] USB cable x1, PC link cable (SD300 type) x1 [Note] If the port of DI2 part is compatible with EW-SD50, please arrange EW-AD305 and EW-SD50 (1 piece) or Y7EA03100 SM-PCE02 PC link cable (SD50 type). .
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