The ZFAT-51020 from Mini Circuits is a RF Variable Attenuator with Frequency 10 MHz to 1 GHz, Attenuation Range 4 to 35 dB, Attenuation Step 5 to 20 dB, Power 0.03 W, P1dB 15 dBm. Tags: Module with Connectors, Programmable, Digital. More details for ZFAT-51020 can be seen below.