The ZVBP-4900-S+ from Mini Circuits is a Band Pass Filter with Frequency 4840 to 4960 MHz, Center Frequency 4900 MHz, Insertion Loss 1.20 to 2 dB, Upper Rejection 20 to 28 dB, Lower Rejection 20 to 29 dB. Tags: Module with Connectors, Cavity Filter. More details for ZVBP-4900-S+ can be seen below.