The QMC-CRYOATTF-10BLK from Quantum Microwave is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 10 dB, Power 100 mW, Attenuation Accuracy ±0.5 dB, Insertion Loss 0.2 dB. Tags: Module with Connectors, Cryogenic Attenuator. More details for QMC-CRYOATTF-10BLK can be seen below.