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ASUS A7PRO User’s Manual 41
3. HARDWARE SETUP
Connectors
3. H/W SETUP
18) USB Headers (10-1 pin USBPORT)
If the USB port connectors on the back panel are inadequate, two USB headers
are available for two additional USB port connectors. Connect the USB headers
to an optional 2-port USB connector set and mount the bracket to an open slot
on your chassis.
A7PRO USB Ports
USBPORT
USB Power
USBP2–
USBP2+
GND
NC
USB Power
USBP3–
USBP3+
GND
15
610
0 1
0 1
0 1
A7PRO
Bundled 2-port
USB Connector Set
19) SMBus Connector (5-1 pin SMB)
This connector allows you to connect SMBus (System Management Bus) de-
vices. SMBus devices communicate by means of the SMBus with an SMBus
host and/or other SMBus devices. SMBus is a specific implementation of an I
2
C
bus, which is a multi-device bus; that is, multiple chips can be connected to the
same bus and each one can act as a master by initiating data transfer.
SMBCLK
Ground
SMBDATA
+5V
1
A7PRO SMBus Connector
SMB
0 1
0 1
0 1
A7PRO
Recommended Setup: Use USBPORT with the bundled 2-port connector set.