The 8CL3D55G-300-CD-SFF from Quantic PMI (Planar Monolithics) is a Band Pass Filter with Frequency 3.55 GHz, Center Frequency 3550 MHz, Insertion Loss 1.5 dB, Rejection -55dBc @ 3.2GHz -60dBc @ 4.0GHz, VSWR 1.50:1. Tags: Module with Connectors, Combline Filter. More details for 8CL3D55G-300-CD-SFF can be seen below.