Whether you're an overachiever or an up-and-comer, ThinkPad laptops, like the Lenovo ThinkPad W540 Laptop PC, are the tools you need. From the thin-and-light wonder to the heavy-duty mobile workstation, they're built, tested and enhanced for reliability, durability and speed. ThinkPad laptops, including the Lenovo ThinkPad W540 Laptop PC, endure a lot before they ever reach you. Lenovo meticulously designs many of them to pass rugged military spec tests. They are outfitted with spill-resistant keyboards, roll-cage technology and shock-mounted hard drives. And they are tested in ways you can't imagine: baking, battering and blistering.