ASROCK B550M/ac Manual Del Usuario página 34

Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.1, No. 13)
Serial ATA3 Connectors
(SATA3_1:
see p.1, No. 9)
(SATA3_2:
see p.1, No. 10)
(SATA3_3:
see p.1, No. 11)(Lower)
(SATA3_4:
see p.1, No. 11)(Upper)
USB 2.0 Headers
(9-pin USB_3_4)
(see p.1, No. 18)
(9-pin USB_5_6)
(see p.1, No. 19)
USB 3.2 Gen1 Headers
(19-pin F_USB3_1_2)
(see p.1, No. 8)
(19-pin F_USB3_3_4)
(see p.1, No. 14)
30
SPEAKER
DUMMY
DUMMY
+5V
1
PLED+
PLED+
PLED-
USB_PWR
P-
P+
GND
DUMMY
1
GND
P+
P-
USB_PWR
Vbus Vbus
Vbus IntA_PB_SSRX-
IntA_PA_SSRX- IntA_PB_SSRX+
IntA_PA_SSRX+ GND
GND IntA_PB_SSTX-
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
IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
IntA_P_SSRX-
Vbus
1
Vbus
IntA_P_SSRX-
IntA_P_SSRX+
GND
IntA_P_SSTX-
IntA_P_SSTX+
GND
IntA_P_D-
IntA_P_D+
ID
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.
There are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
There are two headers on
this motherboard. Each
USB 3.2 Gen1 header can
support two ports.