Gigabyte GA-6VTX User Manual page 31

SPDIF: (Optional)
Please note:
The SPDIF output is capable of providing digital audio to external speakers or
compressed AC3 data to an external Dolby Digital Decoder. Use this feature only
when your stereo system has digital output function.
1
Pin No. Definition
1 VCC
2 SPDIF OUT
3 GND
24
Connectors