Asus P4S533 User Manual page 44

3. Universal Serial Bus Ports 1 and 2 (Black, Two x 4-pin USB)
Four USB ports are available for connecting USB devices.
Universal Serial Bus (USB)
4. Parallel Port (Burgundy 25-pin PRINTER)
You can enable the parallel port and choose the IRQ through Onboard
Parallel Port (see 4.4.2 I/O Device Configuration).
NOTE!
5. Serial Ports (Teal/Turquoise Two, x 9-pin COM1)
Two serial ports can be used for pointing devices, printers or other serial
devices. To enable these ports, see Onboard Serial Port 1 in 4.4.2 I/O
Device Configuration for the settings.
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Serial printers must be connected to the serial port.
Parallel (Printer) Port (25-pin female)
COM 1
Serial Ports (9-pin male)
COM 2
Chapter 2: Hardware information