The Neutrik NBNC75BLP9X is a rearTWIST UHD BNC male cable connector, 75 ohm, for terminating thinner video coax used for SDI, 4K and 8K signals in broadcast studios, OB vans and AV installations. The catalogue lists it for Sommer SC-Vector (RCB) cable; Neutrik specifies it for a cable outside diameter of 6.3 mm. Its optimised pin and insulator design gives very low reflection: Neutrik quotes better than 30 dB return loss up to 6 GHz, 24 dB up to 12 GHz and 20 dB up to 18 GHz, making it suitable for 12G-SDI. It is a crimp connector using a 6.47 mm hex crimp on the shield and a 1.07 mm pin crimp, and the rearTWIST mechanism lets you lock and release the bayonet from the back of the connector, which is handy on densely packed patch bays. The shell is brass with Swiss antraloy plating and the centre contact is gold-plated brass. It is rated for more than 1,000 mating cycles and -30 to +85 C and mates with any standard BNC socket. Single connector; crimp tools and coloured boots are separate.