Dell Inspiron 531s (Mid 2007) - Manual (Page 169)

Appendix
169
Drives
Externally accessible one 3.5-inch drive bay (FlexBay)
one 5.25-inch drive bay
Internally accessible two 3.5-inch drive bays
Available devices two 3.5-inch Serial ATA hard drive (internal bay)(one
optional) and one 5.25-inch Serial ATA CD-ROM,
CD-RW, DVD-ROM, DVD-RW, or combo drive
(external bay)
floppy drive (optional) or Media Card Reader
(optional) and USB memory devices
Connectors
External connectors:
Video 15-hole connector
Network adapter RJ-45 connector
USB two front-panel and four back-panel USB 2.0-
compliant connectors
Audio six connectors for 7.1 support
System board connectors:
Serial ATA four 7-pin connectors
Internal USB device one 10-pin connector (supports two USB ports)
Floppy drive one 34-pin connector
Processor fan one 4-pin connector
Chassis fan one 3-pin connector
PCI 2.3 two 124-pin connectors
PCI Express x1 one 36-pin connector
PCI Express x16 one 164-pin connector
Front panel control one 10-pin connector
Front panel USB one 10-pin connectors
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