Asus A7S333 User Manual page 40

3) Universal Serial Bus Ports 1 and 2 (Black two x 4-pin USB)
Two USB ports are available for connecting USB devices.
USB 1
Universal Serial Bus (USB) 2
4) Parallel Port (Burgundy 25-pin LPT)
You can enable the parallel port and choose the IRQ through Onboard
Parallel Port (see 4.4.2 I/O Device Configuration).
NOTE! Serial printers must be connected to the serial port.
Parallel Port (25-pin Female)
5) Serial Ports (Teal/Turquoise two x 9-pin COM1 / COM2)
Two serial ports can be used for pointing devices or other serial devices. To
enable these ports, see Onboard Serial Port 1 / Onboard Serial Port 2 in
4.4.2 I/O Device Configuration for the settings.
COM1 COM2
Serial Ports (9-pin Male)
28 Chapter 2: Hardware information