The SATRXX-2-99-12.4-A6 from Sainty-Tech Communications Limited is a RF Variable Attenuator with Frequency 0.1 to 12.4 GHz, Attenuation Range 0 to 99 dB, Attenuation Accuracy ±0.8 to 2.5 dB, Power 2 to 5 W, Peak Power 53.01 dBm. Tags: Module with Connectors, Rotary. More details for SATRXX-2-99-12.4-A6 can be seen below.