The RFST300G18 from RF-Lambda is a Termination with Frequency DC to 18 GHz, Power 30 to 300 W, Peak Power 10 kW, Operating Temperature -55 to 125 Degree C, Storage Temperature -55 to 125 Degree C. Tags: Module with Connectors, Coaxial Termination. More details for RFST300G18 can be seen below.