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X9DRD-iF/LF Motherboard User’s Manual
Note 1: X9DRD-iF has the
front-accessible USB 4/5
and USB 8/9. X9DRD-LF
only has USB 4/5.
Note 2: X9DRD-iF has the
backpanel USB 0/1 and USB
2/3. X9DRD-LF only has the
backpanel USB 0/1.
1. Backpanel USB 0
2. BP USB 1
3. BP USB 2
4. BP USB 3
5. FP USB 4/5
6. FP USB 8/9
7. FP USB 6
Universal Serial Bus (USB)
Four Universal Serial Bus ports (USB
0/1, USB 2/3) are located on the I/O
back panel. In addition, three USB
headers, located close to the IO Hub,
provides four front-accessible USB
connections (USB 4/5, USB 8/9).
One Type A connector (USB6) also
supports front panel USB connection.
(Cables are not included). See the
tables on the right for pin denitions.
FP USB (4/5, 8/9, USB 6)
PinDenitions
USB 4, 8, 6,
Pin # Denition
USB 5, 9
Pin # Denition
1 +5V 1 +5V
2 PO- 2 PO-
3 PO+ 3 PO+
4 Ground 4 Ground
5 NC 5 Key
(NC= No connection)
Backplane
USB (0/1, 2/3)
PinDenitions
Pin# Denition
1 +5V
2 PO-
3 PO+
4 Ground
5 NA