The SJ-ST-2000-6000-63-1 from A-Info is a RF Variable Attenuator with Frequency 2 to 6 GHz, Attenuation Range 0 to 63 dB, Attenuation Step 1 dB, Attenuation Accuracy ±1.5 dB, Power 1 W. Tags: Module with Connectors, Digital. More details for SJ-ST-2000-6000-63-1 can be seen below.