The QCV-FL4G-D from Qualwave is a RF Connector with Frequency DC to 67 GHz, Operating Temperature -55 to 165 Degree C, Pin Diameter Dia. 0.3, 0.58 mm, Voltage Rating 500 VDC, VSWR 1.25:1. Tags: Standard. More details for QCV-FL4G-D can be seen below.