The 50P-1304 from JFW Industries is a RF Variable Attenuator with Frequency 0 to 500 MHz, Attenuation Range 0 to 75 dB, Power 0.5 W, Switching Time 6000 ns, Supply Voltage 12 V. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 50P-1304 can be seen below.