The 75PA-068 from JFW Industries is a RF Variable Attenuator with Frequency DC to 1 GHz, Attenuation Range 63.75 dB, Attenuation Accuracy 0.1 to 0.5 dB, Power 0.5 W, Insertion Loss 2.5 dB. Tags: Rackmount, Programmable, Multi-Channel, System, Digital, Computer Controlled. More details for 75PA-068 can be seen below.