System Board Connectors continued, External Connectors

System Board Connectors (continued)

Chassis fan	one 3-pin connector
Front USB connector	five 9-pin connectors
Front audio connector	one 9-pin connector for 2-channel stereo
	sound and microphone
SATA	four 7-pin connectors
S/PDIF out	one 5-pin connector

External Connectors

Network adapter	RJ45 connector
USB	two top-panel, two front-panel, and four
	back-panel USB 2.0-compliant
	connectors
Audio	top panel — one headphone and one
	microphone connector
	back panel — six connectors for 7.1
	support
S/PDIF	one S/PDIF (optical) connector
eSATA	one back-panel connector
IEEE 1394a	one back-panel 6-pin serial connector
HDMI	19-pin connector
DVI	24-pin connector

Expansion Slots

PCI
Connectors	one
Connector size	124-pin connector
Connector data width (maximum)	32 bit
PCI Express x1
Connectors	two
Connector size	36-pin connector