Dell XPS 720 Owner's Manual page 165

Drives
Available devices
Externally accessible:
Internally accessible:
Connectors
External connectors:
IEEE 1394
Network adapter
PS/2 (keyboard and mouse)
USB
System board connectors:
IDE drive
Serial ATA
Floppy drive
Fan
Liquid cooling (optional)
PCI
PCI Express x1
PCI Express x16 (SLOT7); card
length up to 17.8 cm (7 inches
only)
PCI Express x16
Controls and Lights
Power control
Power light
Hard-drive access light
Serial ATA drive, floppy drive, memory devices, Blu-ray™ Disc
drive, DVD drive, DVD-RW drive, CD-RW/DVD combo drive,
and media card reader
two 3.5-inch drive bays
four 5.25-inch drive bays
four 3.5-inch drive bays for hard drives
front and back-panel 6-pin serial connectors
RJ45 connector
two 6-pin mini-DIN
two front-panel, six back-panel, and two internal
USB 2.0–compliant connectors
one 40-pin connector
six 7-pin connectors
34-pin connector
three 5-pin connectors
one 12-pin connector
three 124-pin connectors
36-pin connector
164-pin connector
three 164-pin connectors
push button
green light — Blinking green in sleep state; solid green for power-
on state.
amber light — Blinking amber indicates a problem with an
installed device; solid amber indicates an internal power problem.
green
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Appendix