Gigabyte GA-H55N-USB3, User Manual, Page: 19 / 96

- 19 - Hardware Installation
1-6 Back Panel Connectors
USB 2.0/1.1 Port
The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices such as a USB key -
board/mouse, USB printer, USB flash drive and etc.
PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 keyboard or mouse.
D-Sub Port
(Note 1)
The D-Sub port supports a 15-pin D-Sub connector. Connect a monitor that supports D-Sub connection
to this port.
DVI-D Port
(Note 1)(Note 2)(Note 3)
The DVI-D port conforms to the DVI-D specification and supports a maximum resolution of 1920x1200 (the
actual resolutions supported depend on the monitor being used). Connect a monitor that supports DVI-D con-
nection to this port.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical audio.
Before using this feature, ensure that your audio system provides an optical digital audio in connector.
HDMI Port
(Note 1)(Note 3)
The HDMI (High-Definition Multimedia Interface) provides an all-digital audio/video interface to transmit the
uncompressed audio/video signals and is HDCP compliant. Connect the HDMI audio/video device to this port.
The HDMI Technology can support a maximum resolution of 1920x1200 but the actual resolutions supported
depend on the monitor being used.
• After installing the HDMI device, make sure the default device for sound playback is the HDMI
device. (The item name may differ from operating system. Refer to the figures below for details.)
• Please note the HDMI audio output only supports AC3, DTS and 2-channel-LPCM formats. (AC3 and
DTS require the use of an external decoder for decoding.)
In Windows Vista, select Start>Control Panel>Sound>
Playback, set
Intel(R) Display Audio HDMI 2 to the
default playback device.