Asus BM3CD User Manual page 20

Air vents. These vents allow air ventilation.
DO NOT block the air vents on the chassis. Always provide proper ventilation for your
computer.
VGA port. This port is for VGA-compatible devices such as a VGA monitor.
Serial port. This COM port is for pointing devices or other serial devices.
LPT connector (on selected models only). Connect a parallel device such as a printer
to this LPT (Line Printing Terminal) connector.
Serial port (on selected models only). This COM port is for pointing devices or other
serial devices.
20 Chapter 1: Getting started