ASROCK B85M Pro4 Manual page 26

Serial ATA2 Connectors
(SATA_4_5:
see p.1, No. 9)
Serial ATA3 Connectors
(SATA_0_1:
see p.1, No. 11)
(SATA_2_3:
see p.1, No. 10)
USB 2.0 Headers
(9-pin USB6_7)
(see p.1, No. 17)
(9-pin USB8_9)
(see p.1, No. 16)
USB 3.0 Header
(19-pin USB10_11)
(see p.1, No. 8)
Front Panel Audio Header
(9-pin HD_AUDIO1)
(see p.1, No. 23)
24
USB_PWR
P-
P+
GND
DUMMY
1
GND
P+
P-
USB_PWR
Vbus Vbus
Vbus IntA_PB_SSRX-
IntA_PA_SSRX- IntA_PB_SSRX+
IntA_PA_SSRX+ GND
GND IntA_PB_SSTX-
IntA_PA_SSTX- IntA_PB_SSTX+
IntA_PA_SSTX+ GND
GND IntA_PB_D-
IntA_PA_D- IntA_PB_D+
IntA_PA_D+
Dummy
1
GND
PRESENCE#
MIC_RET
OUT_RET
1
OUT2_L
J_SENSE
OUT2_R
MIC2_R
MIC2_L
These two SATA2
connectors support SATA
data cables for internal
storage devices with up to
3.0 Gb/s data transfer rate.
These four SATA3
connectors support SATA
data cables for internal
storage devices with up to
6.0 Gb/s data transfer rate.
Besides four USB 2.0 ports
on the I/O panel, there
are two headers on this
motherboard. Each USB
2.0 header can support
two ports.
Besides two USB 3.0 ports
on the I/O panel, there
is one header on this
motherboard. Each USB
3.0 header can support
two ports.
This header is for
connecting audio devices
to the front audio panel.