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This motherboard provides 6
are two connectors on the PC99 back panel. You can use proper cable to connect others USB connectors to the back plane or
front panel of chassis.
Pin 1
Pin 1
NC
GND
SBD3+
SBD3-
1
r
d
r
d
a
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d
3
U
S
B
2
.
0
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n
d
3
U
S
B
2
.
0
USB
connectors to connect USB devices, such as mouse, keyboard, modem, printer, etc. There
KEY
GND
SBD2+
SBD2-
P
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P
o
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