ASRock B85M Pro4 manual Header can support two ports

Serial ATA2 Connectors	5	These two SATA2
(SATA_4_5:	4	connectors support SATA
	SATA
see p.10, No. 9)		data cables for internal
		storage devices with up to
		3.0 Gb/s data transfer rate.
Serial ATA3 Connectors	3	These four SATA3
(SATA_0_1:	2	connectors support SATA
	SATA
see p.10, No. 11)		data cables for internal
(SATA_2_3:	0 1	storage devices with up to
see p.10, No. 10)		6.0 Gb/s data transfer rate.
	SATA_

USB 2.0 Headers

(9-pin USB6_7)

(see p.10, No. 17)

(9-pin USB8_9)

(see p.10, No. 16)

USB_PWR

P- P+ GND DUMMY

1

GND

USBP_-PWRP+

Besides four USB 2.0 ports on the I/O panel, there are two headers on this motherboard. Each USB

2.0header can support two ports.

USB 3.0 Header

(19-pin USB10_11)

(see p.10, No. 8)

Vbus

IntA_PA_SSRX- IntA_PA_SSRX+

GND

IntA_PA_SSTX-

IntA_PA_SSTX+

GND

IntA_PA_D-

IntA_PA_D+

Vbus

IntA_PB_SSRX- IntA_PB_SSRX+

GND

IntA_PB_SSTX- IntA_PB_SSTX+

GND

IntA_PB_D-

IntA_PB_D+

Dummy

1

Besides two USB 3.0 ports on the I/O panel, there is one header on this motherboard. Each USB

3.0header can support two ports.

English

Front Panel Audio Header

(9-pin HD_AUDIO1)

(see p.10, No. 23)

GND PRESENCE#

MIC_RET

OUT_RET

1

OUT2_L

J_SENSE

OUT2_R

MIC2_R MIC2_L

This header is for connecting audio devices to the front audio panel.

24