Asus 90MB14S0-M0EAY0 Manual page 30

13. Front Panel Audio header
The front panel audio header is for a chassis-mounted front panel audio I/O module
that supports HD Audio. Connect one end of the front panel audio I/O module cable to
this header.
We recommend that you connect a high-definition front panel audio module to this
connector to avail of the motherboard's high-definition audio capability.
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Chapter 1: Product Introduction