The 4684-10 from ARRA Inc. is a RF Variable Attenuator with Frequency 2 to 4 GHz, Attenuation Range 10 dB, Power 10 W, Peak Power 66.99 dBm, Insertion Loss 0.5 dB. Tags: Module with Connectors, Rotary, Continuously Variable. More details for 4684-10 can be seen below.