MSI B85M-E45, Preface, Page: 36 / 84

Chapter 1
1-22 Getting Started
JUSB1~2: USB 2.0 Expansion Connector
This connector is designed for connecting high-speed USB peripherals such as USB
HDDs, digital cameras, MP3 players, printers, modems, and many others.
1.VC
C
3.US
B0-
10.N
C
5.US
B0+
7.Gro
und
9.No
Pin
8.Gro
und
6.US
B1+
4.US
B1-
2.VC
C
Important
Note that the VCC and GND pins must be connected correctly to avoid possible
damage.
JUSB3: USB 3.0 Expansion Connector
The USB 3.0 port is backwards compatible with USB 2.0 devices. It supports data
transfer rates up to 5Gbits/s (SuperSpeed).
5.US
B3_T
X_C
_DN
4.Gro
und
3.US
B3_R
X_D
P
2.US
B3_R
X_D
N
1.Po
wer
10.G
roun
d
9.
+
USB
2.0
8.
-
USB
2.0
7.Gro
und
6.US
B3_T
X_C
_DP
20.N
o Pin
19.P
ower
18.U
SB3_
RX_D
N
17.U
SB3_
RX_D
P
16.G
roun
d
15.U
SB3_
TX_C
_DN
14.U
SB3_
TX_C
_DP
13.G
roun
d
12.U
SB2.0
-
11.
+
USB
2.0
Important
Note that the VCC and GND pins must be connected correctly to avoid possible
damage.
To use a USB 3.0 device, you must connect the device to a USB 3.0 port through
an optional USB 3.0 compliant cable.
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