MSI X99S GAMING 9 AC - Manual (Page 23)

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▶LAN Port
The standard RJ-45 LAN jack is for connecting to a Local Area Network (LAN).
LINK/ACT
LED
SPEED
LED
LED LED Status Description
Link/ Activity LED
Off No link
Yellow Linked
Blinking Data activity
Speed LED
Off 10 Mbps connection
Green 100 Mbps connection
Orange 1 Gbps connection
▶Optical S/PDIF-Out
This S/PDIF (Sony & Philips Digital Interconnect Format) connector is provided for
digital audio transmission to external speakers through an optical fiber cable.
▶Audio Ports
These connectors are used for audio devices.
■ Line-In/ SS-Out: Line-In is used for connecting external audio outputting devic-
es. SS-Out is side surround line out in 7.1 channel mode.
■ Line out: Used as a connector for speakers or headphone.
■ Mic: Used as a connector for a microphone.
■ RS-Out: Rear surround sound line out in 4/ 5.1/ 7.1 channel mode.
■ CS-Out: Center/ subwoofer line out in 5.1/ 7.1 channel mode.