NTC195-2121-0240-K0B 21 = Precision APC 7 mm sexless, 0240 = 24.0" overall length, K0B = Non-metallic, black conduit covered with PET braid. Application: Test. Operating frequency 0.05 - 18.0 GHz, VSWR 1.30:1 Max., Insertion loss 1.60 dB Max.