Motherboard Help

I’m in the process of building a computer and I just bought an Asus P4T533-C Audio LAN Rambus Memory motherboard. I has a built in sound card with an S/PDIF output to be hooked up to a home receiver system. What is the name of the wire I need to go from the S/PDIF to my coaxial adapter on the back of my surround receiver? Thanks.