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USB 2.0 Headers
(9-pin USB4_5)
(see p.2, No. 31)
(9-pin USB6_7)
(see p.2, No. 34)
(9-pin USB8_9)
(see p.2, No. 35)
USB 3.0 Header
(19-pin USB3_6_7)
(see p.2, No. 15)
Infrared Module Header
(5-pin IR1)
(see p.2, No. 38)
Consumer Infrared Module Header
(4-pin CIR1)
(see p.2 No. 36)
38
USB_PWR
P-9
P+9
GND
DUMMY
1
GND
P+8
P-8
USB_PWR
ASRock Z77 OC Formula 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 six 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.
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