Dell Dimension 4500C (Japan Only) - Manual (Page 97)

Appendix 97
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