Dell OptiPlex 7040 Owner's Manual page 52

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 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
Processor
Processor fan
Service mode jumper
52
Specification
Universal Audio Jack
Line out connector
RJ-45 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
• 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
164-pin connector
164-pin connector
Three 7-pin connectors
Four 288-pin connectors
10-pin connector
4-pin connector
M.2 22x80 socket3
5-pin connector
1151-pin connector
4-pin connector
2-pin connector