The MDPX-0305PSM-1 from Marki Microwave is a Diplexer with Frequency f1 DC to 3 GHz, Frequency f2 5 to 26.5 GHz, Power 30 dBm, Attenuation 11 to 51 dB (Rejection), Attenuation f1 11 to 38 dB. Tags: Surface Mount. More details for MDPX-0305PSM-1 can be seen below.