The RG400SF from ANOISON Electronics LLC is a RF Cable with Frequency Range DC to 6 GHz, Cut off Frequency 6 GHz, Propagation Velocity 0.7, Cable Diameter 0.207 Inches, Attenuation 0.046 to 0.366 Inches. Tags: Flexible, Hand Formable, Semi-rigid. More details for RG400SF can be seen below.