The RG400 from ANOISON Electronics LLC is a RF Cable with Frequency Range DC to 12.4 GHz, Cut off Frequency 12.4 GHz, Propagation Velocity 0.7, Cable Diameter 0.195 Inches, Attenuation 4.39 to 57.90 dB/ft. Tags: Flexible, Hand Formable, Semi-rigid. More details for RG400 can be seen below.