The ANO 51-10001-40 from ANOISON Electronics LLC is a Fixed Attenuator with Frequency DC to 6 GHz, Attenuation 40 dB, Power 100 W, Peak Power 500 W, Attenuation Accuracy +/- 1.2 dB. Tags: Module with Connectors. More details for ANO 51-10001-40 can be seen below.