Asus Motherboard P5ND2 - Manual (Page 39)

ASUS P5ND2 1-27
7. USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus
(USB) ports are available for connecting USB 2.0 devices.
8. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB)
ports are available for connecting USB 2.0 devices.
9. Serial port. This port connects a mouse, modem, or other devices
that conform with serial specification.
10. Coaxial S/PDIF Out port. This port connects an external audio
output device via a coaxial S/PDIF cable.
11. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.
1.10.2 Internal connectors
1. Floppy disk drive connector (34-1 pin FLOPPY)
This connector is for the provided floppy disk drive (FDD) signal cable.
Insert one end of the cable to this connector, then connect the other
end to the signal connector at the back of the floppy disk drive.
Pin 5 on the connector is removed to prevent incorrect cable connection
when using a FDD cable with a covered Pin 5.
P5ND2
R
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1.
PIN 1
FLOPPY
P5ND2 Floppy Disk Drive Connector