Dell Dimension 3100C - Manual (Page 88)

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Appendix
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Audio
Type HDA 2
Expansion Bus
Bus type PCI 2.3
PCI Express x1
Bus speed PCI: 33 MHz
PCI Express: 500 MB/s bidirectional speed
PCI
connectors two
connector size 120 pins
connector data width (maximum) 32 bits
PCI Express
connector one x1
connector size 36 pins
connector data width (maximum) 1 PCI Express lane
Drives
Externally accessible:
one 3.5-inch drive bay (FlexBay)
one 5.25-inch drive bay
Available devices Serial ATA drive (1), floppy drive, USB memory devices,
DVD±RW drive, and media reader
Internally accessible one bay for a single 1-inch high hard drive
Connectors
External connectors:
Video 15-hole connector
Network adapter RJ45 connector
USB two front-panel and four back-panel USB 2.0-compliant connectors
Audio three connectors for line-in, line-out, and microphone; one front-
panel connector for headphones