ASRock A75M-ITX ATX 12V Power Connector Please connect an ATX, Serial port module, This header

ATX 12V Power Connector	Please connect an ATX 12V
(4-pin ATX12V1)	power supply to this connector.
(see p.2 No. 21)
Serial port Header	This COM1 header supports a
(9-pin COM1)	serial port module.
(see p.2 No. 5)

HDMI_SPDIF Header	HDMI_SPDIF header, providing
(2-pin HDMI_SPDIF1)	SPDIF audio output to HDMI
(see p.2 No. 22)	VGA card, allows the system to
	connect HDMI Digital TV/
	projector/LCD devices. Please
	connect the HDMI_SPDIF
	connector of HDMI VGA card to
	this header.

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ASRock A75M-ITX Motherboard