B6121A1-NT3G-1-50 B6121A1-NT3G-3-75 B6121A1-NT3G-58CU-50 B6121A1-NT3G-59U/20AWG-75 B6121A1-NT3G-59U-75 B6121A1-NT3G-8X-50 B6121A2-NT3G-734A-75 B6121A2-NT3G-735A-75 B6121A6-NT3G-9913-50 B6121B1-ND3G-3-75