The QFA18K5 from Qualwave is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 10 to 60 dB, Power 500 W, Attenuation Accuracy -0.6 to 6 dB, Operating Temperature -55 to 125 Degree C. Tags: Connectorized. More details for QFA18K5 can be seen below.