The 8582-6150-02-CRYO from XMA Corporation is a Fixed Attenuator with Frequency DC to 40 GHz, Attenuation 2 dB, Power 1 W, Cryogenic Temperature 4 Degree K to 125 Degree C, Attenuation Accuracy ±0.5 to ±0.8 dB. Tags: Module with Connectors, Cryogenic Attenuator. More details for 8582-6150-02-CRYO can be seen below.