The 25-A from Bird is a Fixed Attenuator with Frequency DC to 4 GHz, Attenuation 3, 6, 10, 20, 30 dB, Power 25 W, Weight 9.0 oz, 256 g, 0.256 Kg, Operating Temperature -40 to 40 Degree C. Tags: Module with Connectors. More details for 25-A can be seen below.