The NA61/SHINE experiment at the CERN SPS is undergoing a major upgrade during the LHC Long Shutdown 2 period (2019-2021). The upgrade is essential to fulfill the requirements of the new open charm and neutrino programs. In these programs the NA61/SHINE will operate with the data acquisition rate increased by a factor of 10, which requires an upgrade of current Beam Position Detectors (BPDs). New BPDs should monitor beam particle positions with a frequency up to 10^5 Hz.
The design and development of the new BPDs based on Si strip detectors as well as BPD’s readout electronics, integration with DAQ and electronics verification results will be discussed.