Dell XPS 720 (Mid 2007) - Manual (Page 163)

Appendix
163
Drives
Available devices 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
Externally accessible: two 3.5-inch drive bays
four 5.25-inch drive bays
Internally accessible: four 3.5-inch drive bays for hard drives
Connectors
External connectors:
IEEE 1394 front and back-panel 6-pin serial connectors
Network adapter RJ45 connector
PS/2 (keyboard and mouse) two 6-pin mini-DIN
USB two front-panel, six back-panel, and two internal
USB 2.0–compliant connectors
System board connectors:
IDE drive one 40-pin connector
Serial ATA six 7-pin connectors
Floppy drive 34-pin connector
Fan three 5-pin connectors
Liquid cooling (optional) one 12-pin connector
PCI three 124-pin connectors
PCI Express x1 36-pin connector
PCI Express x16 (SLOT7); card
length up to 17.8 cm (7 inches
only) 164-pin connector
PCI Express x16 three 164-pin connectors
Controls and Lights
Power control push button
Power light 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.
Hard-drive access light green