Dell Latitude E5420 (Early 2011) - Manual (Page 146)

Display
Pixel pitch
Latitude 5420/E5420/E5420m
HD 0.2265 mm x 0.2265 mm
HD+ 0.1935 mm x 0.1935 mm
Latitude 5520/E55420/E5520m
HD 0.2520 mm x 0.2520 mm
FHD 0.1935 mm x 0.1935 mm
Keyboard
Number of keys United States: 86 keys, United Kingdom: 87 keys, Brazil: 87
keys, and Japan: 90 keys
Layout QWERTY/AZERTY/Kanji
Touchpad
Active Area
X-axis 80.00 mm
Y-axis 40.70 mm
Battery
Type 4-, 6- or 9-cell "smart" lithium ion
Dimensions:
Height
4-, 6-, and 9-cell 20.00 mm (0.79 inch)
Width
4- and 6-cell 208.00 mm (8.18 inches)
9-cell 214.00 mm (8.43 inches)
Depth
4- and 6-cell 48.08 mm (1.89 inches)
9-cell 71.79 mm (2.83 inches)
Weight
4-cell 240.00 g (0.53 lb)
6-cell 344.73 g (0.76 lb)
9-cell 508.20 g (1.12 lb)
Voltage
146