NTC182-58R66-0240-K0B 58R = Precision 2.4 mm NMD female, 66 = Precision K (2.92 mm) male, 0240 = 24.0" overall length, K0B = Non-metallic, black conduit covered with PET braid. Application: Test. Operating frequency 0.05 - 40.0 GHz, VSWR 1.40:1 Max., Insertion loss 2.90 dB Max.