ASROCK B550AM Gaming User Manual page 36

Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.7, No. 15)
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)
AMD LED Fan USB
Header
(4-pin USB_5)
(see p.7, No. 24)
USB 2.0 Headers
(9-pin USB_1_2)
(see p.7, No. 17)
(9-pin USB_3_4)
(see p.7, No. 16)
USB 3.2 Gen1 Header
(19-pin USB3_5_6)
(see p.7 or 8, No. 8)
30
SPEAKER
DUMMY
DUMMY
+5V
1
PLED+
PLED+
PLED-
1
GND
P- P+
USB_PWR
USB_PWR
P-
P+
GND
DUMMY
1
GND
P+
P-
USB_PWR
Vbus Vbus
Vbus IntA_PB_SSRX-
IntA_PB_SSRX+
IntA_PA_SSRX-
IntA_PA_SSRX+ GND
IntA_PB_SSTX-
GND
IntA_PA_SSTX-
IntA_PB_SSTX+
IntA_PA_SSTX+
GND
GND IntA_PB_D-
IntA_PA_D- IntA_PB_D+
IntA_PA_D+ Dummy
1
Please connect the
chassis power LED and
the chassis speaker to this
header.
These four SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
This header is used for
connecting the USB
connector on the AMD
SR3 Heatsink.
There are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
There is one header on
this motherboard. Each
USB 3.2 Gen1 header can
support two ports.