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D
X
P
N
-
U
D
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P
N
-
U
S
u
p
p
o
r
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T
w
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U
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This motherboard provides two
two connectors on the PC99 back panel. You can use proper cable to connect other USB connectors to the back panel or front
panel of chassis.
1
2
+5V
+5V
SBD3-
SBD2-
SBD3+
SBD2+
GND
GND
NC
KEY
B
2
.
0
C
h
a
n
n
e
l
s
B
2
.
0
C
h
a
n
n
e
l
s
USB
channels to link USB devices, such as mouse, keyboard, modem, printer, etc. There are
(
F
o
u
r
P
o
r
t
s
)
(
F
o
u
r
P
o
r
t
s
)
34
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l
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n
e
M
a
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l
O
n
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M
a
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