Memory

Architecture	DDR SDRAM
Memory connectors	two
Memory capacities	128-, 256-, and 512-MB non-ECC DDR
	SDRAM
Minimum memory	128 MB
Maximum memory	1 GB
Memory type	266-MHz DDR SDRAM (non-ECC)

Drives

Externally accessible	one slimline optical bay
	one slimline 3.5-inch bay
Internally accessible	one bay for 1-inch–high IDE hard drive
Available devices	ATA-100 Ultra DMA hard drive, CD drive,
	DVD drive, and CD-RW drive

Ports and Connectors

Externally accessible:
Serial	One 9-pin connector; 16550C-compatible
Parallel	25-hole connector (bidirectional)
IEEE 1394	Two 4-hole, unpowered connectors
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 (compatible with 1.1)
Headphone	front-panel miniature connector
Audio	three miniature connectors for line-in, line-
	out, and microphone
Network	one 10/100 Ethernet network connector
Internally accessible:
Primary IDE channel	40-pin connector on PCI local bus
Secondary IDE channel	40-pin connector on PCI local bus

Appendix

Dell 6M515, 4500C manual Memory