ASROCK N100M User Manual page 27

Chassis Intrusion and Speaker Header
(7-pin SPK_CI1) (see p.6, No. 10)
Please connect the chassis intrusion and the chassis speaker to this header.
Serial ATA3 Connectors
Vertical:
(SATA3_0) (see p.6, No. 4)
(SATA3_1) (see p.6, No. 5)
These two SATA3 connectors support SATA data cables for internal storage
devices with up to 6.0 Gb/s data transfer rate.
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SPK_CI1
SPEAKER
DUMMY
DUMMY
+5V
1
SIGNAL
GND
DUMMY