The FA18-02XX-SMSF from Fujian MIcable is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 1 to 40 dB, Power 2 W, Attenuation Accuracy ±0.5, -0.5/ +0.6 dB, -0.6/+0.8 dB, Operating Temperature -55 to 125 Degree C. Tags: Module with Connectors. More details for FA18-02XX-SMSF can be seen below.