41
M
M
K
K
7
7
9
9
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
a
a
n
n
d
d
3
3
r
r
d
d
U
U
S
S
B
B
(
(
1
1
.
.
1
1
)
)
P
P
o
o
r
r
t
t
t
This motherboard provides six
This motherboard provides six
connectors to connect USB devices, such as mouse, keyboard, modem, printer, etc. There
are four connectors on the PC99 back panel. You can use proper cables to connect the other USB connectors to the USB
modules or front panel of chassis.
USB3 Connector
USB2 Connector
Pin 1
Pin 1
+5V
SB
GND
+5V
GND
D3-
SBD3+
SBD2-
SBD2+
2
1
NC
KEY
Note:
Please note that if you would like to use
USB devices (Example: keyboard, mouse.etc.)
under DOS environment, you must install driver
comes with the devices to make it work.
