The ANO 21-0501-09 from ANOISON Electronics LLC is a Fixed Attenuator with Frequency DC to 26.5 GHz, Attenuation 9 dB, Power 5 W, Peak Power 200 W, Attenuation Accuracy +/- 0.5 dB. Tags: Module with Connectors. More details for ANO 21-0501-09 can be seen below.