" The Thinkpad X250 is portability perfected. It is built for business with the latest Intel 5th generation Core i7 processor and Windows 8.1 Professional. Weighing less than 1.31 kg and measuring 20.3mm at its thickest point, the X250 is ultraportable And mdash: without sacrificing anything in terms of ports, connectivity, or durability. Military-specification testing validates the ruggedness, durability, and quality of this laptop by testing against 11 parameters: high pressure, humidity, vibration, high temperature, temperature shock, low pressure (15,000 ft), low temperature, solar radiation, fungus, salt fog, and dust. Specifications Brand: Lenovo Type: Laptop Model Number: X250 Model Name: ThinkPad Colour: Black Processor Name: Core i7 Processor Generation: 5th Generation RAM: 4gb Storage: 500gb HDD Keyboard: ENG "