ASRock A55 Pro manual 19

2.7 Onboard Headers and Connectors

Onboard headers and connectors are NOT jumpers. Do NOT place jumper caps over these headers and connectors. Placing jumper caps over the headers and connectors will cause permanent damage of the motherboard!

Serial ATA2 Connectors										These six Serial ATA2
(SATA_1: see p.2, No. 8)		SATA_1			SATA_2					(SATA2) connectors support
(SATA_2: see	p.2, No. 9)									SATA data cables for internal
(SATA_3: see	p.2, No. 16)									storage devices. The current
(SATA_4: see	p.2, No. 17)									SATA2 interface allows up to
(SATA_5: see p.2, No. 20)					SATA_3 SATA_4					3.0 Gb/s data transfer rate.
(SATA_6: see	p.2, No. 19)
					SATA_5 SATA_6
Serial ATA (SATA)										Either end of the SATA data
Data Cable										cable can be connected to the
(Optional)										SATA / SATAII hard disk or the
										SATAII connector on this
										motherboard.
USB 2.0 Headers										Besides six default USB 2.0
(9-pin USB6_7)										ports on the I/O panel, there
(see p.2 No. 22)										are two USB 2.0 headers on
										this motherboard. Each USB 2.0
										header can support two USB
(9-pin USB8_9)										2.0 ports.
				USB_PWR
(see p.2 No. 21)					P-9
							P+9
								GND
		1							DUMMY
								GND
							P+8
					P-8
				USB_PWR
Infrared Module Header					IRTX					This header supports an
(5-pin IR1)						+5VSB				optional wireless transmitting
								DUMMY
(see p.2 No. 24)			1							and receiving infrared module.
							GND
					IRRX

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ASRock A55 Pro Motherboard