Chapter 2
K8N4/K8N4U
5
External Connectors
PS/2 Keyboard/Mouse Connector
PS/2 keyboard connector is for the usage of PS/2 keyboard. If using a standard AT size
keyboard, an adapter should be used to fit this connector. PS/2 mouse connector is for the
usage of PS/2 mouse.
USB1, USB2, USB3, USB4 and LAN Connectors(optional)
Four USB ports are for connecting USB devices. The RJ-45 connector is for onboard
LAN.
PS/2 Mouse connector
PS/2 Keyboard connector
Parallel Port , Serial Port Connectors (COM1) and SPDIF Connector
The parallel port connector can be connected to a parallel device such as a printer. The serial
port COM1 connector can be connected to a serial port device such as a serial port mouse.
The S/PDIF (Sony / Philips Digital Interface) input allow your digital audio input from digital
audio devices (optional). The S/PDIF output is capable of providing digital audio data or
compressed AC3 data to an external Dolby digital decoder.
USB3_4
LAN (optional)
USB1_2
Parallel Port
COM1
SPDIF
IEEE 1394 Port (optional)
The IEEE 1394 port is for connecting IEEE 1394 device.
IEEE 1394 port