SVIDEO Mini Din4 Female to Mini Din4 Female Coupler.
Used to Connector two Svideo Cables.

Svideo Wiring
4 PIN MINI-DIN FEMALE at the peripheral.

Pin    Name            Description
 1     GND             Ground (Y)
 2     GND             Ground (C)
 3     Y               Intensity (Luminance)
 4     C               Color (Chrominance)