The KAT-4+ from Mini Circuits is a Fixed Attenuator with Frequency DC to 43.5 GHz, Attenuation 3.4 to 5 dB, Power 1.7 W, Operating Temperature -40 to 85 Degree C, Storage Temperature -65 to 150 Degree C. Tags: Surface Mount. More details for KAT-4+ can be seen below.