Dell OptiPlex 780 - Manual (Page 6)

Drives
Externally accessible
slimline drive bays one bay for SATA DVD-ROM / DVD+/–
RW
Internally accessible
2.5-inch drive bays one
External Connectors
Audio
back panel two connectors: line-out (headphone)
and line-in (microphone)
front panel two connectors: line-out (headphone)
and line-in (microphone)
Network one RJ45 connector
Serial one 9-pin connector; 16550C compatible
USB
front panel two
back panel five
eSATA one
Video 15-pin VGA connector
20-pin DisplayPort™ connector
NOTE: Available video connectors may
vary based on the graphics card
selected.
System Board Connectors
Serial ATA
two 7-pin connectors
Memory four 240-pin connectors
Internal USB device one 10-pin connector (supports two USB
ports)
Processor fan one 4-pin connector
System fan one 3-pin connector
Front panel control one 9-pin connector
Front panel audio one 10-pin connector
Processor one socket N
Power 12 V one 4-pin connector
Power one 24-pin connector
Power
Wattage 180 W
Maximum heat dissipation (MHD) 750 BTU/hr
Voltage 90–264 VAC, 47–63 Hz, 2.6 A
Coin-cell battery 3 V CR2032 lithium coin cell
NOTE: Heat dissipation is calculated by using the power supply wattage rating.
NOTE: See the safety information that shipped with your computer for important
voltage setting information
Physical