NTC182-58R54-0240-K0B 58R = Precision 2.4mm NMD female, 54 = Precision K (2.92mm) female, 0240 = 24.0" overall length, K0B = Non-metallic, black conduit covered with PET braid. Application: Test, indoor. Operating frequency 0.05 - 40.0GHz, VSWR 1.40:1 Max., Insertion loss 2.90dB Max.