The 50PA-860 from JFW Industries is a RF Variable Attenuator with Frequency 200 MHz to 6 GHz, Attenuation Range 63 dB, Attenuation Accuracy 0.5 to 1.25 dB, Power 0.5 to 2 W, Insertion Loss 6 dB. Tags: Rackmount, Programmable, Multi-Channel, System, Digital, Computer Controlled. More details for 50PA-860 can be seen below.