Isolated BNC chassis connector feedthrough in nickel D-shape housing Neutrik's BNC chassis connectors offer a true 75Ω design for serial and digital (HD) signals. The machined brass connector body provides an extremely rugged and non-abrasive connection over long term use and is in addition recessed and therefore well protected in a D-shape housing (audio industry standard). Gold plated cage type centre contact True 75Ω design meets the stringent HD requirements Isolated panel mount (solves potential grounding problems and prevents common-mode influence with other connections conducted over the same panel ground potential) Standard D sized 24mm panel cutout