ASROCK Z77 Extreme4 User Manual page 37

(9-pin USB6_7)
(see p.13, No. 24)
USB 3.0 Header
(19-pin USB3_4_5)
(see p.13, No. 9)
Infrared Module Header
(5-pin IR1)
(see p.13, No. 30)
Consumer Infrared Module Header
(4-pin CIR1)
(see p.13 No. 27)
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.13, No. 31)
1. High Definition Audio supports Jack Sensing, but the panel wire on the
chassis must support HDA to function correctly. Please follow the
instruction in our manual and chassis manual to install your system.
2. If you use AC'97 audio panel, please install it to the front panel audio
header as below:
A. Connect Mic_IN (MIC) to MIC2_L.
B. Connect Audio_R (RIN) to OUT2_R and Audio_L (LIN) to OUT2_L.
C. Connect Ground (GND) to Ground (GND).
D. MIC_RET and OUT_RET are for HD audio panel only. You don't need
to connect them for AC'97 audio panel.
GND
PRESENCE#
MIC_RET
OUT_RET
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
37
Besides four 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.
This is an interface for front
panel audio cable that allows
convenient connection and
control of audio devices.