The 50P-990 from JFW Industries is a RF Variable Attenuator with Frequency 0 to 2500 MHz, Attenuation Range 0 to 31.5 dB, Power 1 W, Switching Time 6000 ns, Supply Voltage 12 V. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 50P-990 can be seen below.