The AT-B000-HC from UMCC is a RF Variable Attenuator with Frequency 500 MHz to 1 GHz, Attenuation Range 0 to 60 dB, Power 1 W, P1dB 30 dBm, Insertion Loss 1.7 dB. Tags: Module with Connectors, Current Controlled. More details for AT-B000-HC can be seen below.