The MXC1250M500B20PS-01 from Dyne Tech is a Quadplexer with Attenuation 40 dB, Frequency 800 to 5900 MHz, Frequency1 800 to 1000 MHz, Frequency2 1500 to 1650 MHz, Frequency3 2400 to 2500 MHz. Tags: Module With Connectors. More details for MXC1250M500B20PS-01 can be seen below.