Asus A7V266-M - Manual (Page 38)

26 Chapter 2: Hardware information
3) Universal Serial Bus Ports 1 & 2 (Black two 4-pin USB)
Two USB ports are available for connecting USB devices.
5) Serial Ports (Teal/Turquoise 9-pin COM1 / 9-pin 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.
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).
Universal Serial Bus (USB) 2
USB 1
COM2 COM1
Serial Ports (9-pin Male)
Parallel Port (25-pin Female)
NOTE! Serial printers must be connected to the serial port.