ASROCK Taichi B550, User Manual, Page: 37 / 102

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30
Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.8, No. 26) Please connect the
chassis power LED and
the chassis speaker to this
header.
Serial ATA3 Connectors
(SATA3_1_2:
see p.8, No. 15)
(SATA3_3_4:
see p.8, No. 16)
(SATA3_A1_A2:
see p.8, No. 18)
(SATA3_A3_A4:
see p.8, No. 17) These eight SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
*To minimize the boot
time, use AMD B550
SATA ports (SATA3_1)
for your SSDs.
USB 2.0 Headers
(9-pin USB_3_4)
(see p.8, No. 25)
(9-pin USB_5_6)
(see p.8, No. 24) There are two headers
on this motherboard.
Each USB 2.0 header can
support two ports.
USB 3.2 Gen1 Headers
(19-pin USB3_7_8)
(see p.8, No. 10)
(19-pin USB3_5_6)
(see p.8, No. 14)
There 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
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
SA
TA3_4
SA
TA3_3
SA
TA3_A4
SA
TA3_A2
SA
TA3_A3
SA
TA3_A1
SA
TA3_2
SA
TA3_1
1
In
Dummy
IntA_PB_D-
GND
IntA_
GND
IntA_PB_SSTX-
IntA_
IntA_PB_SSRX-
Vbus V
Vbus V
IntA_PA_SSRX-
IntA_
GND
IntA_PA_SSTX-
IntA_
GND
IntA_PA_D-
In