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Table 12. WWAN module specifications (continued)
Description
Power supply
SIM card
eSIM with dual SIM (DSSA)
Antenna diversity
Radio On/Off
Wake on wireless
Temperature
Antenna connector
NOTE:
For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number,
search in the Knowledge Base Resource at www.dell.com/support.
Audio
The following table lists the audio specifications of your Latitude 5440.
Table 13. Audio specifications
Description
Audio controller
Stereo conversion
Internal audio interface
External audio interface
Number of speakers
Internal-speaker amplifier
External volume controls
Speaker output:
Average speaker output
Peak speaker output
18
Specifications of Latitude 5440
Option one
DC 3.135 V to 4.4 V, Typical 3.3 V
Supported through external SIM slot
Supported
Supported
Supported
Supported
● Normal operating temperature: -10°C to
+ 55°C
● Extended Operating temperature: -20°C
to +65°C
● WWAN Main Antenna x 4
● Supports 4x4 MIMO
Option two
B39, B40, B41, B42, B43, B46, B48,
B66, B71)
● WCDMA/HSPA+ (1, 2, 4, 5, 8)
DC 3.135 V to 4.40 V, Typical 3.30 V
Supported through external SIM slot
Supported
Supported
Supported
Supported
● Normal operating temperature: -10°C
to + 55°C (14°F to 131°F)
● Extended Operating temperature:
-30°C to +75°C (-22°F to 167°F)
● Storage temperature: -40°C to
+85°C (-40°F to 185°F)
● WWAN Main Antenna x 4
● Supports 4x4 MIMO
Values
Realtek Waves, MaxxAudio 12.0
Supported
High definition audio interface
Universal Audio Jack/HDMI 2.0 port
2
Not supported
Keyboard shortcut controls
2 W
2 W
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