A
X
3
7
P
l
u
s
/
A
X
3
A
X
3
7
P
l
u
s
/
A
X
3
n
n
d
d
S
u
p
p
o
r
t
2
&
3
S
u
p
p
o
r
t
2
&
3
This motherboard supports three USB ports and provides six USB connectors. Two of them are on the PC99 colored back panel,
nd
rd
and 2
and 3
port connector is behind PCI3 slot. You can use proper cable to connect others USB connectors to the back plane
or front panel of chassis.
Pin 1
1
2
+5V
SBD2-
SBD2+
GND
9
10
7
P
r
o
7
P
r
o
r
r
d
d
U
S
B
P
o
r
t
U
S
B
P
o
r
t
+5V
SBD3-
SBD3+
GND
H_OC23-
50
O
n
l
i
n
e
M
a
n
u
a
l
O
n
l
i
n
e
M
a
n
u
a
l