The 10-18A from Bird is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 3, 6, 10, 20, 30 dB, Power 10 W, Weight 3.5 oz, 100 g, 0.1 Kg, Operating Temperature -40 to 40 Degree C. Tags: Module with Connectors. More details for 10-18A can be seen below.