Dell OptiPlex 7040 - Mini Tower Owner's Manual page 50

Table 28. External connectors
Feature
Audio:
Front panel
Back panel
Network adapter
Serial
Parallel
USB 2.0
USB 3.0
Video
Keyboard and mouse
Table 29. Internal connectors
Feature
PCI 2.3 data width (maximum) — 32 bits
PCI Express x1 data width (maximum) — one
PCI Express lane
PCI Express x16 (wired as x4) data width
(maximum) — four PCI Express lanes
PCI Express x16 data width (maximum) — 16
PCI Express lanes
Serial ATA
Memory
Internal USB
System fan
SSD
Front panel control
50
Specification
Universal Audio Jack
Line out connector
RJ45 connector
9-pin connector; 16550 C compatible
25-pin connector (optional)
• Front panel: two
• Back panel: two
• Front panel: two
• Back panel: four
• 19-pin HDMI connector
• Two 20-pin DisplayPort connectors (one of the
DisplayPort connectors is optional).
• 15-pin VGA connector (optional)
NOTE: Available video connectors may vary based
on the graphics card selected.
Back panel:
• PS2 Keyboard 6-pin connector
• PS2 Mouse 6-pin connector
Specification
120-pin connector
36-pin connector
164-pin connector
164-pin connector
Four 7-pin connectors
Four 288-pin connectors
10-pin connector
4-pin connector
M.2 22x80 socket3
5-pin connector