The S9305 from Mercury Systems is a Low Pass RF Filter with Frequency 1 to 3300 MHz, Stopband Frequency 7700 to 18000 MHz, Insertion Loss 0.5 dB, Rejection 65 dB, Upper Rejection 65 dB @7700 to 18000 MHz. Tags: Module with Connector. More details for S9305 can be seen below.