Asus 90MB1BK0-M0EAY0 Manual page 29

14. COM Port header
The COM (Serial) Port header allows you to connect a COM port module. Connect the
COM port module cable to this header, then install the module to a slot opening on the
system chassis.
The COM port module is purchased separately.
15. 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.
TUF GAMING X670E-PLUS WIFI
COM
PIN 1
AAFP
PIN 1
HD-audio-compliant
pin definition
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