Asus P5K - Manual (Page 62)

2-38 Chapter 2: Hardware information
Q-Connector (system panel)
You can use ASUS Q-Connector to connect / disconnect chassis front panel
cables by only a few steps. Directions below shows how to install ASUS Q-
Connector.
Step2.
Properly install the ASUS Q-Connector to the
System panel connctor.
Step1.
Connect correct front panel to ASUS Q-
Connector first. You can refer to the marking
on Q-Connector itself to know the detail pin
definition.
Step3.
Front panel functions are enabled.