The WBLB-T-BP-3505-1014-L from A-Info is a Band Pass Filter with Frequency 2.998 to 4.012 GHz, Insertion Loss 2 dB, Rejection 50 to 60 dB, VSWR 1.50:1, Operating_Temperature -30 to 70 Degree C. Tags: Module with Connectors, Lumped Component Filter. More details for WBLB-T-BP-3505-1014-L can be seen below.