Asus DN-300-R2 Manual page 21

2. USB 2.0 connectors (10-pin USB1_HUB, USB2_FRONT, USB3, USB4)
These connectors are for USB 2.0 ports. Connect the USB cable to these
connectors. These USB connectors comply with USB 2.0 specification that
supports up to 480 Mbps connection speed.
DN-300-R2 USB2.0 connectors
CAUTION! Never connect a 1394 cable to the USB connector. Doing so will
damage the motherboard.
NOTE: The USB cable is purchased separately.
3. LPT connector (26-1 pin LPT)
The LPT (Line Printing Terminal) connector supports devices such as a
printer. LPT is standardized as IEEE 1284, which is the parallel port interface
on IBM PC-compatible computers.
DN-300-R2 LPT connector
Chapter 2: Motherboard information
USB2_FRONT
GND
GND
GND
P0+
P1+
P0-
P1-
+5V
+5V
PIN 1
USB1_HUB
PIN 1 PIN 1
LPT
PIN 1
USB3 USB4
PIN 1
2-15