The 50P-1683 from JFW Industries is a RF Variable Attenuator with Frequency DC to 2.5 GHz, Attenuation Range 70 dB, Attenuation Step 10 dB, Power 0.5 W, Peak Power 50 dBm. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 50P-1683 can be seen below.