The WBLB-T-BP-12300-400/T-6C from A-Info is a Band Pass Filter with Frequency 12.09 to 12.49 GHz, Insertion Loss 1 dB, Rejection 60 dB, VSWR 1.50:1. Tags: Module with Connectors, Cavity Filter. More details for WBLB-T-BP-12300-400/T-6C can be seen below.