The KAT-30-D+ from Mini Circuits is a Fixed Attenuator with Frequency DC to 50 GHz, Attenuation 29.9 to 30.2 dB, Power 0.8 to 1 W, Attenuation Accuracy ±0.1 to 1.0 dB, Operating Temperature -40 to 85 Degree C. Tags: Die. More details for KAT-30-D+ can be seen below.