The SF-214 from HUBER+SUHNER is a RF Cable with Frequency Range DC to 107 GHz, Cut off Frequency 107 GHz, Propagation Velocity 0.695, Cable Diameter 0.503 Inches, Attenuation 2.62 to 15.01 dB/m. Tags: Semi-Rigid, Hand Formable. More details for SF-214 can be seen below.