The 354-289-XXX from Broadwave Technologies is a Fixed Attenuator with Frequency DC to 4 GHz, Attenuation 1 to 30 dB, Power 50 W, Peak Power 1 kW, Attenuation Accuracy ±1 dB, ±1.5 dB. Tags: Module with Connectors. More details for 354-289-XXX can be seen below.