Table 15. Touchpad specifications (continued)
Description Values
Vertical
2442
Touchpad dimensions:
Horizontal
115 mm (4.53 in.)
Vertical
80 mm (3.15 in.)
Touchpad gestures For more information about touchpad gestures available on
Windows 10, see the Microsoft knowledge base article
4027871 at support.microsoft.com.
Power adapter
The following table lists the power adapter specifications of your Inspiron 7400.
Table 16. Power adapter specifications
Description Option one Option two
Type
E4 65 W PECOS (USB Type-C) 65 W
Connector dimensions:
External diameter
4.50 mm Not applicable
Internal diameter
2.90 mm Not applicable
Input voltage
100 VAC–240 VAC 100 VAC–240 VAC
Input frequency
50 Hz–60 Hz 50 Hz–60 Hz
Input current (maximum)
1.60 A/1.70 A 1.70 A
Output current (continuous)
3.34 A 3 A/3.25 A
Rated output voltage
19.50 VDC ● 5 VDC
● 9 VDC
● 15 VDC
● 20 VDC
Temperature range:
Operating
0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F)
Storage
-40°C to 70°C (-40°F to 158°F) -40°C to 70°C (-40°F to 158°F)
Battery
The following table lists the battery specifications of your Inspiron 7400.
Table 17. Battery specifications
Description Option one Option two
Battery type
4-cell "smart" lithium-ion, 52 Wh 6-cell "smart" lithium-ion, 78 Wh
Specifications of Inspiron 7400 17
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