The 4752-60D from ARRA Inc. is a RF Variable Attenuator with Frequency 2 to 4 GHz, Attenuation Range 0 to 60 dB, Attenuation Accuracy ±0.3 to 1.6 dB, Power 0.1 W, Insertion Loss 1.8 dB. Tags: Module with Connectors, Voltage Controlled. More details for 4752-60D can be seen below.