The QMC-CRYOATTF-03BLK from Quantum Microwave is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 3 dB, Power 100 mW, Cryogenic Temperature 10 mK, Attenuation Accuracy ±0.5 dB. Tags: Module with Connectors, Cryogenic Attenuator. More details for QMC-CRYOATTF-03BLK can be seen below.