The TNC-212-001 from VidaRF is a RF Connector with Frequency DC to 11 GHz (For 50 Ohms), DC to 1 GHz (For 75 Ohms), Connector Inner Diameter 3.1 mm, Operating Temperature -65 to 125 Degree C, VSWR 1.50:1. Tags: Standard. More details for TNC-212-001 can be seen below.