The CATTEN-04R0 from Crystek Corporation is a Fixed Attenuator with Frequency DC to 3 GHz, Attenuation 4 dB, Power 1 W, Attenuation Accuracy ±0.3 dB, Operating Temperature -40 to 85 Degree C. Tags: Module with Connectors. More details for CATTEN-04R0 can be seen below.