ASROCK H170 Pro4 Manual page 22

Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.1, No. 14)
Serial ATA3 Connectors
(SATA3_0:
see p.1, No. 6)
(SATA3_1:
see p.1, No. 7)
(SATA3_2:
see p.1, No. 11)
(SATA3_3:
see p.1, No. 13)
(SATA3_4:
see p.1, No. 10)
(SATA3_5:
see p.1, No. 9)
Serial ATA Express
Connectors
(SATA_EXP0:
see p.1, No. 15)
USB 2.0 Headers
(9-pin USB_1_2)
(see p.1, No. 19)
(9-pin USB_3_4)
(see p.1, No. 18)
20
SPEAKER
DUMMY
DUMMY
+5V
1
PLED+
PLED+
PLED-
SATA3_5 SATA3_4
SATA3_3 SATA3_2
SATA3_3 SATA3_2
SATA_EXP0
USB_PWR
P-
P+
GND
DUMMY
1
GND
P+
P-
USB_PWR
Please connect the
chassis power LED and
the chassis speaker to this
header.
These six SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
If the Ultra M.2 Socket
(M2_1) is occupied by a
SATA-type M.2 device,
SATA3_0 and SATA3_1
will be disabled.
Please connect either
SATA or PCIe storage
devices to these
connectors.
There are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.