The LDA-203B from Vaunix is a RF Variable Attenuator with Frequency 1000 to 20000 MHz, Attenuation Range 63 dB, Attenuation Accuracy ±1 to 3 dB, Power 0.1 W, IIP3 50 dBm. Tags: Module with Connectors, Digital, Programmable. More details for LDA-203B can be seen below.