The 2517 from Narda-ATM is a Fixed Attenuator with Frequency DC to 18 GHz, Attenuation 3, 6, 10, 20, 30dB, Power 25 W, Peak Power 500 W, Attenuation Accuracy ± 0.75dB max @ 3 - 6 Db to ± 1.5dB max @ 30 Db. Tags: Module with Connectors. More details for 2517 can be seen below.