The SAA-500M18G-20DB-SFF from Quantic PMI (Planar Monolithics) is a RF Variable Attenuator with Frequency 500 MHz to 18 GHz, Attenuation Range 20 dB, Power 0.1 W, P1dB 20 dBm, Insertion Loss 3 dB. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for SAA-500M18G-20DB-SFF can be seen below.