Asus ROG STRIX B550-E GAMING Manual page 31

16. S/PDIF Out header
The S/PDIF Out header allows you to connect the Sony/Philips Digital Interface (S/
PDIF) Out module.
The S/PDIF module is purchased separately.
17. Speaker header
The 4-pin header is for the chassis-mounted system warning speaker. The speaker
allows you to hear system beeps and warnings.
ROG STRIX B550-E GAMING
SPDIF_OUT
SPEAKER
PIN 1
1-19