Specifications
Size
ThinkPad E490/R490
• Width: 329.3 mm (12.96 inches)
• Depth: 242.8 mm (9.56 inches)
• Thickness: 20.2 mm to 21.9 mm (0.80 inches to 0.86 inches)
ThinkPad E490s
• Width: 329.3 mm (12.96 inches)
• Depth: 232.6 mm (9.15 inches)
• Thickness: 17.9 mm (0.7 inches)
Maximum heat output
(depending on the model)
• 45 W (154 Btu/hr)
• 65 W (222 Btu/hr)
Power source (ac power
adapter)
• Sine-wave input at 50 Hz to 60 Hz
• Input rating of the ac power adapter: 100 V to 240 V ac, 50 Hz to 60 Hz
10 E490/E490s/R490 User Guide