The 359-310-XXX from Broadwave Technologies is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 3 to 30 dB, Power 50 W, Attenuation Accuracy ±1 dB, Operating Temperature -40 to 100 Degree C. Tags: Module with Connectors. More details for 359-310-XXX can be seen below.