ASRock B550 Pro4 User Manual - Page 33

Power LED and Speaker, USB 3.2 Gen1 Header

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B550 Pro4 Power LED and Speaker Header (7-pin SPK_PLED1) (see p.7, No. 20) Serial ATA3 Connectors (SATA3_1: see p.7, No. 16) (SATA3_2: see p.7, No. 17) (SATA3_3: see p.7, No. 14) (SATA3_4: see p.7, No. 15) (SATA3_5: see p.7, No. 12) (SATA3_6: see p.7, No. 13) USB 2.0 Headers (9-pin USB_1_2) (see p.7, No. 24) (9-pin USB_3_4) (see p.7, No. 23) SATA3_2 SATA3_4 SATA3_6 SATA3_1 SATA3_3 SATA3_5 SPEAKER DUMMY DUMMY +5V 1 PLED+ PLED+ PLED- 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. * M2_3 and SATA3_5_6 share lanes. If either one of them is in use, the other one will be disabled. USB_PWR PP+ GND DUMMY 1 GND P+ PUSB_PWR There are two headers on this motherboard. Each USB 2.0 header can support two ports. USB 3.2 Gen1 Header (19-pin USB3_7_8) (see p.7, No. 10) Vbus IntA_PA_SSRXIntA_PA_SSRX+ GND IntA_PA_SSTXIntA_PA_SSTX+ GND IntA_PA_DIntA_PA_D+ Vbus IntA_PB_SSRXIntA_PB_SSRX+ GND IntA_PB_SSTXIntA_PB_SSTX+ GND IntA_PB_DIntA_PB_D+ Dummy 1 There is one header on this motherboard. Each USB 3.2 Gen1 header can support two ports. English 27

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B550 Pro4
27
English
Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.7, No. 20)
1
+5V
DUMMY
PLED+
PLED+
PLED-
DUMMY
SPEAKER
Please connect the
chassis power LED and
the chassis speaker to this
header.
Serial ATA3 Connectors
(SATA3_1:
see p.7, No. 16)
(SATA3_2:
see p.7, No. 17)
(SATA3_3:
see p.7, No. 14)
(SATA3_4:
see p.7, No. 15)
(SATA3_5:
see p.7, No. 12)
(SATA3_6:
see p.7, No. 13)
°ese six SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
* M2_3 and SATA3_5_6
share lanes. If either one
of them is in use, the other
one will be disabled.
USB 2.0 Headers
(9-pin USB_1_2)
(see p.7, No. 24)
(9-pin USB_3_4)
(see p.7, No. 23)
DUMMY
GND
GND
P+
P-
USB_PWR
P+
P-
USB_PWR
1
°ere are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
USB 3.2 Gen1 Header
(19-pin USB3_7_8)
(see p.7, No. 10)
1
IntA_PB_D+
Dummy
IntA_PB_D-
GND
IntA_PB_SSTX+
GND
IntA_PB_SSTX-
IntA_PB_SSRX+
IntA_PB_SSRX-
Vbus
Vbus
Vbus
IntA_PA_SSRX-
IntA_PA_SSRX+
GND
IntA_PA_SSTX-
IntA_PA_SSTX+
GND
IntA_PA_D-
IntA_PA_D+
°ere is one header on
this motherboard. Each
USB 3.2 Gen1 header can
support two ports.
SATA3_1
SATA3_3
SATA3_5
SATA3_2
SATA3_4
SATA3_6