Dell Studio Slim 540s Setup Manual page 52

Specifications
System Board Connectors
Processor
Processor fan
Serial ATA
External Connectors
Video
Network adapter
USB
Audio
S/PDIF
IEEE 1394
50
775 pin
one 4-pin connector
four 7-pin connectors
one VGA connector
one HDMI connector
RJ45 connector
two front-panel and
four back-panel
USB 2.0 compliant
connectors
Realtek ALC888S
(7.1 Channel audio)
one S/PDIF connector
6-pin serial connector
Power
DC power supply:
Wattage
Maximum heat
dissipation
Voltage
Coin-cell battery
250 W
135 W
62.5 W (ENERGY
STAR 4.0)
NOTE: Heat
dissipation is
calculated by using
the power supply
wattage rating.
115/230 VAC. 50/60
Hz, 6 A/3 A
3-V CR2032 lithium
coin cell