Touchpad
Table 15. Touchpad specifications
Description
Values
Resolution:
Horizontal
3215
Vertical
2429
Dimensions:
Horizontal
105 mm (4.13 in.)
Vertical
80 mm (3.15 in.)
Touchpad gestures
For more information about touchpad gestures for Windows 10, see the Microsoft knowledge base article
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Power adapter
Table 16. Power adapter specifications
Description
Values
Type
E4 45 W
E4 65 W
Diameter (connector)
4.5 mm x 2.9 mm
4.5 mm x 2.9 mm
Input voltage
100 VAC–240 VAC
100 VAC–240 VAC
Input frequency
50 Hz–60 Hz
50 Hz–60 Hz
Input current (maximum)
1.30 A
1.60 A/1.70 A
Output current (continuous)
2.31 A
3.34 A
Rated output voltage
19.50 VDC
19.50 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)
Specifications of Inspiron 3781
17