ASROCK X300-ITX Manual página 29

Serial ATA3 Connector
(SATA3_1:
see p.1, No. 9)
(SATA3_2:
see p.1, No. 13)
USB 2.0 Header
(9-pin USB_5_6)
(see p.1, No. 8)
Chassis Fan Connector
(4-pin CHA_FAN1)
(see p.1, No. 11)
CPU Fan Connectors
(4-pin CPU_FAN1)
(see p.1, No. 3)
Serial Port Header
(9-pin COM1)
(see p.1, No.1)
(for X300-ITX/COM
only)
26
SATA3_2 SATA3_1
1
USB_PWR USB_PWR
P- P-
P+ P+
GND GND
DUMMY
1 GN D
+12V
2
CHA_FAN_SPEED
3
FAN_SPEED_CONTROL
4
1
GN D
2
+ 12V
3 CPU_ FAN_SPEED
4 FAN_SPEED_CONTROL
1
RRI#1
CCTS#1
RRTS#1
DDSR#1
GND
DDTR#1
TTXD#1
RRXD#1
DDCD#1
These two SATA3
connector supports SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
There is one header on
this motherboard. This
USB 2.0 header can
support two ports.
Please connect fan cable
to the fan connector and
match the black wire to
the ground pin.
This 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.
This COM1 header
supports a serial port
module.