4 pole mini-DIN (s-video) male to 2 pieces of 75Ω mini coax each with a female BNC connector
The signal from the 4 pole connector is split into the two component parts of Luminance and Chrominance
Each of these signals is sent to one of the BNC's identified by colour, Luminance - yellow, Chrominance - white
Enables longer cable runs to be achieved