This is a Gigabyte S/PDIF cable. SN:/12CR1-1SPINO-12R.  It is an optional cable for gigabyte Digital Audio chipset. This digital input out put cable gives you an extreme high quality digital sound input and output. Most motherboards are available for this cable. E.g 8Ixx, 9XX, K8XX.  Please make sure it fits your motherboard. you can simple check out your motherboard, gigabyte website or email me your motherboard model.

Does it fit your motherboard?

1. Check out your motherboard user manual. There is a page telling you which optional cable you ca give, it is normally on page 6,7. Or

2. Download your user manual from Gigabyte website Click Here Or

3. Email me your motherboard model and version number to confirm

More information

http://whatis.techtarget.com/definition/0,,sid9_gci213474,00.html

http://www.gigabyte.com.tw/Products/Motherboard/AccessoryList.aspx