The QLF-5325-30 from Qualwave is a Low Pass RF Filter with Frequency DC to 5.325 GHz, Stopband Frequency 5.925 GHz, Insertion Loss 1.5 dB, Upper Rejection 30 dB @ 5.925 GHz, VSWR 1.50:1. Tags: Module with Connector. More details for QLF-5325-30 can be seen below.