The 800-F203 from RH Laboratories is a RF Variable Attenuator with Frequency 0.75 to 20 GHz, Attenuation Accuracy ±1 dB (Flatness), Power 1 W, Insertion Loss 5 to 5.5 dB, Switching Time 100 ns. Tags: Module with Connectors, Digital. More details for 800-F203 can be seen below.