Asus A7N8X-VM User Manual page 32

12. Serial Port 2 connector (10-1 pin COM2)
This connector accommodates a second serial port using an optional serial
port bracket. Connect the bracket cable to this connector then install the
bracket into a slot opening at the back of the system chassis.
COM2
PIN 1
A7N8X-VM
A7N8X-VM Serial COM2 Connector
The serial port bracket is not included in this motherboard package.
1-22 Chapter 1: Product Information