The 50P-975 from JFW Industries is a RF Variable Attenuator with Frequency 0 to 1000 MHz, Attenuation Range 0 to 63 dB, Power 0.5 W, Insertion Loss 0.8 to 1.5 dB, Switching Time 6000 ns. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 50P-975 can be seen below.