ASROCK B550M/ac User Manual

English
30
Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.1, No. 13)
Please connect the
chassis power LED and
the chassis speaker to this
header.
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)
ese four SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
USB 2.0 Headers
(9-pin USB_3_4)
(see p.1, No. 18)
(9-pin USB_5_6)
(see p.1, No. 19)
ere are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
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)
ere are two headers 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
1
IntA_PB_D+
Dummy
IntA_PB_D-
GND
IntA_PB_SSTX+
GND
IntA_PB_SSTX-
IntA_PB_SSRX+
IntA_PB_SSRX-
VbusVbus
Vbus
IntA_PA_SSRX-
IntA_PA_SSRX+
GND
IntA_PA_SSTX-
IntA_PA_SSTX+
GND
IntA_PA_D-
IntA_PA_D+
SATA3_4 SATA3_3
SATA3_1 SATA3_2
1
ID
IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
Vbus
IntA_P_D+
IntA_P_D-
GND
IntA_P_SSTX+
IntA_P_SSTX-
GND
IntA_P_SSRX+
IntA_P_SSRX-
Vbus
IntA_P_SSRX-

ASROCK B550M/ac Specifications

General

Brand	ASROCK
Model	B550M/ac
Category	Motherboard
Language	English