The RFMU8M9MC4 from RF-Lambda is a Multiplexer with Attenuation 80 to 90 dB (Out band Rejection), Frequency 825 to 835 MHz / 870 to 880 MHz / 909 to 915 MHz / 954 to 960 MHz, Insertion Loss 1.6 to 1.8 dB, Power handling 100 W, Return Loss 18 dB. Tags: Module with Connectors. More details for RFMU8M9MC4 can be seen below.