The 351-288-XXX from Broadwave Technologies is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 1 to 20 dB, Power 2 W, Attenuation Accuracy ±0.3 dB, ±0.5 dB, Operating Temperature -55 to 100 Degree C. Tags: Module with Connectors. More details for 351-288-XXX can be seen below.