Asus ESC500 G3 - Manual (Page 65)

3-17 ASUS ESC500 G3
5. IEEE 1394a port connector (10-1 pin IE1394_1)
This connector is for an IEEE 1394a port. Connect the IEEE 1394a module cable
to this connector, then install the module to a slot opening at the back of the system
chassis.
Never connect a USB cable to the IEEE 1394a connector. Doing so will damage the
motherboard!
The IEEE 1394a module is purchased separately.
6. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port. Connect
the S/PDIF Out module cable to this connector, then install the module to a slot
opening at the back of the system chassis.
The S/PDIF module is purchased separately.