Dell 7M291, 4500S manual Usb

Drives

Externally accessible	one 5.25-inch bay
	one 3.5-inch bay
Internally accessible	one bay for 1-inch–high IDE hard drive
Available devices	ATA-66 or ATA-100 Ultra DMA hard drive,
	CD drive, Zip drive, DVD drive, and CD-RW
	drive
Ports and Connectors
Externally accessible:
Serial	9-pin connector; 16550C-compatible
Parallel	25-hole connector (bidirectional)
Video	15-hole connector
Keyboard	6-pin mini-DIN connector or USB connector
Mouse	6-pin mini-DIN connector or USB connector
USB	two front-panel and four back-panel USB
	2.0–compliant connectors
Headphone	front-panel miniature jack
Audio	three miniature jacks for line-in, line-out, and
	microphone
Internally accessible:
Primary IDE channel	40-pin connector on PCI local bus
Secondary IDE channel	40-pin connector on PCI local bus
Floppy drive	34-pin connector
Video
Video controller	Intel integrated AGP graphics
Audio
Audio controller	ADI 1981A (AC97 Codec)

Appendix

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