The HT18NM-10 is a DC to 18 GHz N Type Coaxial Termination. It can handle up to 10 Watts of RMS power and up to 100 Watts of peak power. The termination is matched to 50 Ohms and has a VSWR of less than 1.4:1 up to 18 GHz. It can operate at a temperature range from -55 to 150 Degrees C.