Shimano SM-PCE02-B3 Di2 PC Linkage Device for E-Tube - with System Checker and Programmer

The PC Linkage Device for STEPS and Di2 groups is used to check system functions, connections, and errors as well as update firmware and customize functions. Improved quality of communication against noise. Easy checking function for current leakage. SM-PCE02 connects through a Micro USB port.