NOTE: It is recommended that you turn on and shut down your computer at least once before you install any cardsor connect the computer to a docking device or other external device, such as a printer.SpecificationsNOTE: Offerings may vary by region. The following specifications are only those required by law to ship with yourcomputer. For more information regarding the configuration of your computer, click Start → Help and Support andselect the option to view information about your computer.Power:Voltage 100 VAC to 240 VACWattage 65 WCoin-cell battery 3 V CR2032 lithium coin cellPhysical Latitude 7240 Latitude 7440Height 20.0mm (0.79 inch) 21.0 mm (0.8 inches)Width 310.5 mm (12.2 inches) 337.0 mm (13.2 inches)Depth 211.0 mm (8.3 inches) 231.5 mm (9.1 inches)Weight (with 3-cell battery) 1.36 kg (2.99 lbs) 1.63 kg (3.6 lbs)EnvironmentalOperating Temperature: 0 °C to 60 °C (32 °F to 140 °F)Information para NOM (únicamente para México)The following information is provided on the device described in this document in compliance with the requirements ofthe official Mexican standards (NOM).Voltaje de alimentación 100 V CA – 240 V CAFrecuencia 50 Hz – 60 HzConsumo eléctrico 1,50 A~2,50 AVoltaje de salida 19,50 V de CCIntensidad de salida 3,34 A/4,62 AFinding More Information and ResourcesSee the safety and regulatory documents that shipped with your computer and the regulatory compliance website atwww.dell.com/regulatory_compliance for more information on:• Safety best practices• Regulatory certification• Ergonomics6