The ANC04-xx from Atlantic Microwave is a Fixed Attenuator with Frequency DC to 4 GHz, Attenuation 0-10, 12, 15, 20, 30 dB, Power 2 W, Attenuation Accuracy ±0.3-0.75 dB, Operating Temperature -65 to 125 Degrees. Tags: Module with Connectors. More details for ANC04-xx can be seen below.