51
A
A
X
X
3
3
7
7
D
D
P
P
l
l
u
u
s
s
/
/
A
A
X
X
3
3
7
7
D
D
P
P
r
r
o
o
O
O
n
n
l
l
i
i
n
n
e
e
M
M
a
a
n
n
u
u
a
a
l
l
S
S
u
u
p
p
p
p
o
o
r
r
t
t
2
2
n
n
d
d
&
&
3
3
r
r
d
d
U
U
S
S
B
B
P
P
o
o
r
r
t
t
This motherboard supports three USB ports and provides six USB connectors. Two of them are on the PC99 colored back panel,
and 2
nd
and 3
rd
port connector is behind PCI3 slot. You can use proper cable to connect others USB connectors to the back panel
or front panel of chassis.
+5V
SBD2-
SBD2+
GND
KEY
+5V
SBD3-
SBD3+
GND
NC
1 2
9 10
Pin 1
