The AFL-05000 from Atlantic Microwave is a Low Pass RF Filter with Frequency DC - 4.5 GHz, Stopband Frequency 5.8 - 12 GHz, 3 dB Cutoff Frequency 5 GHz, Insertion Loss 1 dB, Rejection 50 dB at 5.8 - 12 GHz. Tags: Module with Connector. More details for AFL-05000 can be seen below.