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X11DDW-L/NT User's Manual
Universal Serial Bus (USB) Ports
There are two USB 3.0 ports (USB0/1) and two USB 3.0 ports (USB2/3) on the I/O back
panel. Additionally, an internal USB 3.0 header located on the motherboard also provides two
USB connection (USB4/5) for front access.
Front Panel USB 4/5 (3.0/2.0)
Pin Definitions
Pin#
Definition
Pin#
1
VBUS
11
2
IntA_P1_SSRX-
12
3
IntA_P1_SSRX+
13
4
GND
14
5
IntA_P1_SSTX-
15
6
IntA_P1_SSTX+
16
7
GND
17
8
IntA_P1_D-
18
9
IntA_P1_D+
19
ID
10
JUIDB1
T-SGPIO3
BIOS LICENSE
JRK1
JL1
JNVI2C2
CPU2
FAN6
FAN5
Definition
IntA_P2_D+
IntA_P2_D-
GND
IntA_P2_SSTX+
IntA_P2_SSTX-
GND
IntA_P2_SSRX+
IntA_P2_SSRX-
VBus
2
1
LE1
C
A
USB2/3
(3.0)
LAN2
LAN1
IPMI_LAN
USB0/1(3.0)
JM2_1
LE3
10G PHY
C621
BMC
S-SATA 0~3
I-SATA 0~3
I-SATA 4~7
JBT1
LEDM1
SRW1
MAC CODE
BAR CODE
JSDCARD1
BT1
X11DDW-L
PWRRST
PS
UID
NIC
NIC HDD
PWR
X NMI
ON
FAIL
LED
2
1
LED
LED
REV:1.02
DESIGNED IN USA
CPU1
FAN4 FAN3
42
Back Panel USB (3.0)
Pin Definitions
Pin#
Definition
Pin#
1
VBUS
10
2
D-
11
3
D+
12
4
Ground
13
5
StdA_SSRX-
14
6
StdA_SSRX+
15
7
GND_DRAIN
16
8
StdA_SSTX-
17
9
StdA_SSTX+
18
1. USB0/1
VGA
2. USB2/3
3. USB4/5
JSTBY1
3
JAOM
JF1
LE2
FAN2 FAN1
Definition
Power
USB 2.0 Differential Pair
Ground of PWR Return
SuperSpeed Receiver
Differential Pair
Ground for Signal Return
SuperSpeed Transmitter
Differential Pair
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