Asus TS100-E5/PI4 - 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 ports for the PS/2 keyboard, PS/2 mouse, USB, VGA, and Gigabit LAN do
not appear on the rear panel if motherboard is not present.
Power supply module
95mm system fan
Expansion slots
Power supply switch
Power cord connector
PS/2 keyboard port
PS/2 mouse port
USB 2.0 ports
Serial port
VGA port
Gigabit LAN ports 1-4