ASROCK H77 Pro4-M Quick Installation Manual page 30

USB 2.0 Headers
(9-pin USB_6_7)
(see p.2, No. 25)
(9-pin USB_8_9)
(see p.2, No. 24)
(9-pin USB_10_11)
(see p.2, No. 23)
USB 3.0 Header
(19-pin USB3_12_13)
(see p.2, No. 9)
Infrared Module Header
(5-pin IR1)
(see p.2, No. 19)
Consumer Infrared Module Header
(4-pin CIR1)
(see p.2, No. 26)
30
USB_PWR
P-9
P+9
GND
DUMMY
1
GND
P+8
P-8
USB_PWR
USB_PWR
P-11
P+11
GND
DUMMY
1
GND
P+10
P-10
USB_PWR
Vbus Vbus
Vbus IntA_P13_SSRX
IntA_P12_SSRX IntA_P13_SSRX
IntA_P12_SSRX GND
GND IntA_P13_SSTX
IntA_P12_SSTX
IntA_P13_SSTX
IntA_P12_SSTX
GND
GND IntA_P13_D
IntA_P12_D IntA_P13_D
IntA_P12_D
DUMMY
IRTX
+5VSB
DUMMY
1
GND
IRRX
1
GND
IRTX
IRRX
ATX+5VSB
ASRock H77 Pro4-M Motherboard
Besides four default USB 2.0
ports on the I/O panel, there are
three USB 2.0 headers on this
motherboard. Each USB 2.0
header can support two USB 2.0
ports.
Besides two default USB 3.0
ports on the I/O panel, there is
one USB 3.0 header on this
motherboard. This USB 3.0
header can support two USB 3.0
ports.
This header supports an
optional wireless transmitting
and receiving infrared module.
This header can be used to
connect the remote controller
receiver.