Asus ESC700 G2 - Manual (Page 70)

Chapter 3: Motherboard information 3-28
8. 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 Type item in the BIOS setup to [HD]; if you
want to connect an AC'97 front panel audio module to this connector, set
the item to [AC97]. By default, this connector is set to [HD].
9. 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.