Table 12. WWAN module specifications (continued)
Description Option one Option two
B39, B40, B41, B42, B43, B46, B48,
B66, B71)
● WCDMA/HSPA+ (1, 2, 4, 5, 8)
Power supply
DC 3.135 V to 4.4 V, Typical 3.3 V DC 3.135 V to 4.40 V, Typical 3.30 V
SIM card
Supported through external SIM slot Supported through external SIM slot
eSIM with dual SIM (DSSA)
Supported Supported
Antenna diversity
Supported Supported
Radio On/Off
Supported Supported
Wake on wireless
Supported Supported
Temperature
● Normal operating temperature: -10°C to
+ 55°C
● Extended Operating temperature: -20°C
to +65°C
● 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)
Antenna connector
● WWAN Main Antenna x 4
● Supports 4x4 MIMO
● WWAN Main Antenna x 4
● Supports 4x4 MIMO
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 Values
Audio controller
Realtek Waves, MaxxAudio 12.0
Stereo conversion
Supported
Internal audio interface
High definition audio interface
External audio interface
Universal Audio Jack/HDMI 2.0 port
Number of speakers
2
Internal-speaker amplifier
Not supported
External volume controls
Keyboard shortcut controls
Speaker output:
Average speaker output
2 W
Peak speaker output
2 W
18 Specifications of Latitude 5440
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