Ready for whatever your work might dish out, this business-rugged laptop is stylishly armored top to bottom with a hard-wearing MIL-STD 810G tested Tri-Metal casing, a highly durable anodized, brushed aluminum display back, a tough powder-coated base and reinforced steel hinges. On the inside, it is equipped with a spill-resistant keyboard, protective LCD seal and 360 degree LCD bumper for added screen protection that can outlast the bumps and spills of everyday work. You can enjoy outstanding productivity while in flight or in low-light settings with the optional backlit keyboard and long battery life battery options including 4 and 6 cell ExpressCharge battery options. Hot swappable media mod - ule options, including optical drives, hard drive, battery and USB 3.0, also help keep productivity in full swing. As a member of the Latitude E-Family, the E6420 provides go anywhere productivity, confident security and efficient manageability in a durable design that's built to last - all that you’ve come to expect from the Latitude E-Family.