The 4-5752-60B from ARRA Inc. is a RF Variable Attenuator with Frequency 2.5 to 5 GHz, Attenuation Range 0 to 60 dB, Attenuation Accuracy ±0.3 to 1.6 dB, Power 0.1 W, Insertion Loss 2 dB. Tags: Module with Connectors, Digital. More details for 4-5752-60B can be seen below.