Asus ESC500 G2 - Manual (Page 16)

Chapter 1: Product introduction 1-6
1.5 Rear panel features
The rear panel includes a slot for the motherboard rear I/O ports, expansion slots,
a power supply module, and a vent for the system fan.
The PS/2 keyboard / mouse combo port, USB ports, DVI-I ports, Audio ports,
S/PDIF Out ports, and Gigabit LAN ports do not appear on the rear panel if
motherboard is not present.
Power supply module
Expansion slots
Power supply switch
Power cord connector
PS/2 keyboard / mouse port
USB 2.0 ports
Audio I/O ports
USB 3.0 ports
LAN (RJ-45) port 2
IEEE 1394a port
System fan
LAN (RJ-45) port 1
Coaxial S/PDIF Out port
Optical S/PDIF Out port
DVI port