ASROCK X300-ITX - Page 32

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Serial ATA3 Connector
(SATA3_1:
see p.6, No. 9)
(SATA3_2:
see p.6, No. 13)
ese two SATA3
connector supports SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
USB 2.0 Header
(9-pin USB_5_6)
(see p.6, No. 8)
ere is one header on
this motherboard. is
USB 2.0 header can
support two ports.
Chassis Fan Connector
(4-pin CHA_FAN1)
(see p.6, No. 11)
Please connect fan cable
to the fan connector and
match the black wire to
the ground pin.
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.6, No. 3)
is motherboard
provides a 4-Pin CPU fan
(Quiet Fan) connector.
If you plan to connect a
3-Pin CPU fan, please
connect it to Pin 1-3.
Serial Port Header
(9-pin COM1)
(see p.6, No.1)
(for X300-ITX/COM
only)
is COM1 header
supports a serial port
module.
SATA3_1 SATA3_2
DUMMY
GNDGND
P+
P-
P+
P-
USB_PWR
USB_PWR
1
GN D
+ 12V
CPU_FAN_SPEED
FAN_SPEED_CONTRO
L
1
2
3
4
1
RRI#1
CCTS#1
RRTS#1
DDSR#1
GND
DDTR#1
TTXD#1
RRXD#1
DDCD#
1
GND
+12V
CHA_FAN_SPEED
FAN_SPEED_CONTROL
1
2
3
4