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ASUS H81M-C
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7. USB 2.0 connectors (10-1 pin USB910, USB1112)
These connectors are for USB 2.0 ports. Connect the USB module cable to any of
these connectors, then install the module to a slot opening at the back of the system
chassis. These USB connectors comply with USB 2.0 specications and supports up to
480Mbps connection speed.
Never connect a 1394 cable to the USB connectors. Doing so will damage the
motherboard!
The USB 2.0 module is purchased separately.
H81M-C
H81M-C USB2.0 connectors
PIN 1
USB+5V
USB_P11-
USB_P11+
GND
NC
USB+5V
USB_P12-
USB_P12+
GND
USB1112USB910
PIN 1
USB+5V
USB_P9-
USB_P9+
GND
NC
USB+5V
USB_P10-
USB_P10+
GND
8. Serial port connector (10-1 pin COM)
This connector is for a serial (COM) port. Connect the serial port module cable to this
connector, then install the module to a slot opening at the back of the system chassis.
The COM module is purchased separately.
H81M-C
H81M-C Serial port connectors
PIN 1
COM
DCD
TXD
GND
RTS
RI
RXD
DTR
DSR
CTS