The 50P-1321 from JFW Industries is a RF Variable Attenuator with Frequency 500 to 2500 MHz, Attenuation Range 0 to 127 dB, Power 0.1 to 1 W, Switching Time 2000 ns. Tags: Module with Connectors, Programmable, Digital, Computer Controlled. More details for 50P-1321 can be seen below.