The M17/128-RG400 from Carlisle Interconnect Technologies is a RF Cable with Frequency Range 0.1 to 1 GHz, Cut off Frequency 1 GHz, Attenuation 4.5 to 17 dB/ft, Capacitance 32 ?/ft, Power 620 to 2400 W. More details for M17/128-RG400 can be seen below.