The 674-043-063 from Broadwave Technologies is a RF Variable Attenuator with Frequency DC to 2 GHz, Attenuation Range 63 dB, Attenuation Step 1, 2, 4, 8, 16 and 32 dB, Attenuation Accuracy ± 0.5 dB, Power 1 W. Tags: Module with Connectors, Programmable. More details for 674-043-063 can be seen below.