Dell Inspiron 4000 - Manual (Page 71)

Appendix 71
Luminance 120 nits
Power consumption:
Panel (typical) 1.0 W
Backlight 3.4 W
Controls brightness can be controlled through key
combinations
Keyboard
Number of keys 87 (U.S. and Canada); 88 (Europe); 90
(Japan)
Key travel 2.7 mm ± 0.3 to 0.4 mm (0.11 inch ± 0.016
inch)
Key spacing 19.05 mm ± 0.3 mm (0.75 inch ± 0.012 inch)
Layout QWERTY/AZERTY/Kanji
Touch Pad
Interface PS/2 compatible
X/Y position resolution
(graphics table mode) 240 cpi
Size:
Thickness 2.00 mm (0.08 inch) at highest component
Width 64.88 mm (2.55-inch) sensor-active area
Height 48.88-mm (1.92-inch) rectangle
Weight 6.5 g (0.23 ounce)
Power:
Supply voltage 5 V ± 0.5 VDC
Supply current 25 mA (maximum operating for track stick
and touch pad combined)
ESD in accordance with IEC-801-2
Display (continued)