Gigabyte GA-990XA-UD3 R5 - Back Panel Connectors

Hardware Installation
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1-7 Back Panel Connectors
USB 2.0/1.1 Port
TheUSBport supports theUSB2.0/1.1 specication.Usethisport forUSBdevicessuch asaUSB
keyboard/mouse,USBprinter,USBashdriveandetc.
PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 mouse or keyboard.
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.
USB 3.0/2.0 Port
TheUSB3.0portsupportstheUSB3.0specicationandiscompatibletotheUSB2.0/1.1specication.
UsethisportforUSBdevicessuchasaUSBkeyboard/mouse,USBprinter,USBashdriveandetc.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Activity LED
Connection/
Speed LED
LAN Port
Connection/Speed LED:
State Description
Orange 1 Gbps data rate
Green 100 Mbps data rate
Off 10 Mbps data rate
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
Center/Subwoofer Speaker Out Jack (Orange)
Usethisaudiojacktoconnectcenter/subwooferspeakersina5.1/7.1-channelaudioconguration.
Rear Speaker Out Jack (Black)
Thisjackcanbeusedtoconnectfrontspeakersina7.1-channelaudioconguration.
Side Speaker Out Jack (Gray)
Usethisaudiojacktoconnectsidespeakersina4/5.1/7.1-channelaudioconguration.
Line In Jack (Blue)
The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.