The STL 411 from Crane Aerospace & Electronics is a Limiter with Frequency 2 to 4 GHz, CW Flat Leakage 17 dBm, CW Flat Leakage 0.050 W, CW Input Power 10 W, CW Input Power 40 dBm. Tags: Connectorized, Drop In. More details for STL 411 can be seen below.