The KAT-3-D+ from Mini Circuits is a Fixed Attenuator with Frequency DC to 50 GHz, Attenuation 2.7 to 3.4 dB, Power 1 to 2 W, Attenuation Accuracy ±0.1 to 0.6 dB, Operating Temperature -40 to 85 Degree C. Tags: Die. More details for KAT-3-D+ can be seen below.