The SATRXX-2-100-2.5-A3 from Sainty-Tech Communications Limited is a RF Variable Attenuator with Frequency DC to 2.5 GHz, Attenuation Range 0 to 100 dB, Attenuation Accuracy ±0.8 to 1.5 dB, Power 2 to 10 W, Peak Power 50 dBm. Tags: Module with Connectors, Rotary. More details for SATRXX-2-100-2.5-A3 can be seen below.