Dell Vostro 400 Owner's Manual page 171

Expansion Bus (continued)
connector data width
(maximum)
Drives
Externally accessible:
Internally accessible
Available devices
Connectors
External connectors:
Video
Network adapter
USB
Audio
System board connectors:
Serial ATA
Internal USB device
Floppy drive
Processor fan
Chassis fan
PCI 2.3
PCI Express x1
PCI Express x16
Front panel control
16 PCI Express lanes
one 3.5-inch drive bay (FlexBay)
two 5.25-inch drive bays
two 3.5-inch drive bays
two 3.5-inch Serial ATA hard drives and two 5.25-inch
Serial ATA CD-ROM, CD-RW, DVD-ROM,
DVD+/-RW, or combo drive (optional)
one 3.5-inch floppy drive (optional) or Media Card
Reader (optional)
15-hole connector
RJ-45 connector
four front-panel and four back-panel USB 2.0-
compliant connectors
six connectors for 7.1 support
four 7-pin connectors
two 10-pin connector (supports four USB ports)
one 34-pin connector
one 4-pin connector
one 3-pin connector
two 124-pin connectors
one 36-pin connector
one 164-pin connector
one 10-pin connector
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Appendix