The QMP4-0-20000-1 from Qualwave is a Quadplexer with Attenuation 20 to 40 dB, Frequency DC to 20 GHz, Frequency1 DC to 4.85 GHz, Frequency2 5.15 to 9.85 GHz, Frequency3 10.15 to 14.85 GHz. Tags: Module with Connector. More details for QMP4-0-20000-1 can be seen below.