The MM-CFA-4010-KMF-XX from Mountain Microwave Technology is a Fixed Attenuator with Frequency DC to 40 GHz, Attenuation 1 to 9, 10, 15, 20, 30, 40 dB, Power 10 W, Operating Temperature -55 to 165 Degree C. Tags: Module with Connectors. More details for MM-CFA-4010-KMF-XX can be seen below.