ASROCK X299 Taichi XE Manual page 31

Power LED and Speaker
Header
(7-pin SPK_PLED1)
(see p.7, No. 18)
Serial ATA3 Connectors
(SATA3_0_1:
see p.7, No. 13)
(SATA3_2_3:
see p.7, No. 14)
(SATA3_4_5:
see p.7, No. 15)
(SATA3_6_7:
see p.7, No. 16)
(SATA3_A1_A2:
see p.7, No. 17)
USB 2.0 Headers
(9-pin USB3_4)
(see p.7, No. 23)
(9-pin USB5_6)
(see p.7, No. 22)
USB 3.1 Gen1 Headers
(19-pin USB3_5_6)
(see p.7, No. 12)
24
SPEAKER
DUMMY
DUMMY
+5V
1
PLED+
PLED+
PLED-
USB_PWR
P-
P+
GND
DUMMY
1
GND
P+
P-
USB_PWR
1
Dummy IntA_PA_D+
IntA_PB_D+ IntA_PA_D-
GND
IntA_PB_D-
GND
IntA_PA_SSTX+
IntA_PB_SSTX+
IntA_PA_SSTX-
IntA_PB_SSTX- GND
GND IntA_PA_SSRX+
IntA_PA_SSRX-
IntA_PB_SSRX+
IntA_PB_SSRX- bus
V Vbus
Please connect the
chassis power LED and
the chassis speaker to this
header.
These ten 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 Intel® X299
SATA ports (SATA3_0~7)
for your bootable devices.
* If M2_1 is occupied by
a SATA-type M.2 device,
SATA3_1 will be disabled.
* If M2_2 is occupied by
a SATA-type M.2 device,
SATA3_0 will be disabled.
* If M2_3 is occupied by
a SATA-type M.2 device,
SATA3_7 will be disabled.
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 3.1 Gen1 header can
support two ports.