Asus M4A88TD-M/USB3 User Manual page 49

5. Serial port connector (10-1 pin COM1)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
6. Front panel audio connector (10-1 pin AAFP)
This connector is for a chassis-mounted front panel audio I/O module that supports
either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel
audio I/O module cable to this connector.
• 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.
• If you want to connect a high-definition front panel audio module to this connector, set
the Front Panel Select item in the BIOS setup to [HD Audio]; if you want to connect
an AC'97 front panel audio module to this connector, set the item to [AC 97]. By
default, this connector is set to [HD]. Refer to 3.6.3 Onboard Devices Configuration
for details.
ASUS M4A88TD-M/USB3 2-31