EVGA Z270 Classified – K (134-KS-E279)
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can be used to attach to front panel USB, auxiliary ports that mount in the card
slots, and also some devices that directly connect to the header.
USB standard is 500ma @ 5V per port (header total is 1000ma) for unpowered
devices. If your USB device requires more power than this, it is recommended
to attach a powered USB Hub.
25. Backlit Audio Traces
Isolating audio traces reduces or eliminates electrical noise from the onboard
audio when running multiple devices at a very high frequency. The
combination of CPU and graphics card frequencies and/or SLI can cause static,
channel crosstalk, or other audio anomalies. Each channel’s traces are isolated
from other sources of electrical noise on the board, which improves sound
clarity. From there the traces are backlit to show the isolation path.
26. Front Panel Audio Connector
This is a motherboard header, which is used to plug in the audio cable
originating from most PC chassis to allow audio to be recorded from or played
through the audio connectors on a chassis. This header has a connector that
looks similar to USB2 and will use the standard “HD Audio” jack. Some
systems may have two headers: one labeled HD Audio, and one labeled AC’97
– this header is not compatible with AC’97.
27. S/PDIF Out
S/PDIF is used for audio pass-through, which is used on some older video
cards, video capture cards, and some older generation devices. This port is not
widely used now, but is here in case a legacy item requires the connector. Most
of the audio data is pushed through the bus now, and does not require an
external cable. NOTE: This is a S/PDIF Out connector, and cannot operate to
record data from an external device.
