The SATRXX-2-11-4.3-A3 from Sainty-Tech Communications Limited is a RF Variable Attenuator with Frequency DC to 4.3 GHz, Attenuation Range 0 to 11 dB, Attenuation Accuracy ±0.3 to 0.5 dB, Power 2 to 10 W, Peak Power 50 dBm. Tags: Module with Connectors, Rotary. More details for SATRXX-2-11-4.3-A3 can be seen below.