ECS Z77H2-A2X Deluxe User Manual page 29

7. SPDIFO: SPDIF out header
This is an optional header that provides an SPDIFO (Sony/Philips Digital Interface)
output to digital multimedia device through optical fiber or coaxial connector.
8. F_AUDIO: Front Panel Audio Header
The front panel audio header allows the user to install auxiliary front-oriented mi-
crophone and line-out ports for easier access. This header supports HD audio by
default. If you want connect an AC' 97 front panel audio to HD onboard headers,
please set as below picture.
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