ASROCK B550AM Gaming, User Manual, Page: 36 / 90

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Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.7, No. 15) Please connect the
chassis power LED and
the chassis speaker to this
header.
Serial ATA3 Connectors
(SATA3_1:
see p.7, No. 10)
(SATA3_2:
see p.7, No. 11)
(SATA3_3:
see p.7, No. 13)
(SATA3_4:
see p.7, No. 12) These four SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
AMD LED Fan USB
Header
(4-pin USB_5)
(see p.7, No. 24) This header is used for
connecting the USB
connector on the AMD
SR3 Heatsink.
USB 2.0 Headers
(9-pin USB_1_2)
(see p.7, No. 17)
(9-pin USB_3_4)
(see p.7, No. 16) There are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
USB 3.2 Gen1 Header
(19-pin USB3_5_6)
(see p.7 or 8, No. 8) There is one header on
this motherboard. Each
USB 3.2 Gen1 header can
support two ports.
1
+5V
DUMMY
PLED+
PLED+
PLED-
DUMMY
SPEAKER
DUMMY
GND
GND
P+
P-
USB_PWR
P+
P-
USB_PWR
1
SA
TA3_1
SA
TA3_2
SA
TA3_3
SA
TA3_4
1
In
Dummy
IntA_PB_D-
GND
IntA_
GND
IntA_PB_SSTX-
IntA_
IntA_PB_SSRX-
Vbus Vbus
Vbus
IntA_PA_SSRX-
IntA_
GND
IntA_PA_SSTX-
IntA_
GND
IntA_PA_D-
In
1
USB_PWR
P- P+
GND