MSI KT4 Ultra User Manual page 97

1 Optical SPDIF jack
2 Coaxial SPDIF jack
1
Plug
Using 4- or 6-Channel Audio Function
Description:
Select the correct type of SPDIF jack to connect
SPDIF speakers. For optical connection,
remove the plug from the S-Bracket before
inserting the fiber-optic cable to it.
S-Bracket
2
A-13