The QMC-CRYOIRF-003MF-SMP from Quantum Microwave is a Low Pass RF Filter with Frequency DC to 10 GHz, Insertion Loss 1 dB, Return Loss 15 dB, Operating_Temperature 10 mK(-273.14 Degree C). Tags: Connectorized, Cryogenic Filter, Infrared Filter. More details for QMC-CRYOIRF-003MF-SMP can be seen below.