The ANO 22-0501-04 from ANOISON Electronics LLC is a Fixed Attenuator with Frequency DC to 50 GHz, Attenuation 4 dB, Power 5 W, Peak Power 100 W, Attenuation Accuracy -0.8 to 1.2 dB. Tags: Module with Connectors. More details for ANO 22-0501-04 can be seen below.