The 50P-1633 from JFW Industries is a RF Variable Attenuator with Frequency DC to 1 GHz, Attenuation Range 64.5 dB, Attenuation Step 0.1 dB, Power 1 W, Insertion Loss 4 dB. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 50P-1633 can be seen below.