Rugged Construction
A rubber bumper around the top cover absorbs the force of side bumps. The corners are 50 percent stronger, to reduce damage when dropped at an angle. The bezel is thicker, to protect the LCD panel, and a stronger rear cover reduces accidental LCD damage. The hinges and brackets have been strengthened, to last 50,000 cycles and to withstand more force to the cover. Reinforced ports and a reduced gap between anchored keys help prevent accidental damage from a bored childs exploring fingers. This is one tough machine.

MIL-SPEC Tested
Military-specification testing validates the ruggedness, durability, and quality of ThinkPad products by testing against eight parameters: high pressure, humidity, vibration, high temperature, temperature shock, low pressure (15,000 ft), low temperature, and dust.

ThinkVantage Active Protection System (APS)
For models with traditional hard drives, an accelerometer detects movement and stops the drive when a fall or similar event is detected. Rubber mounts are used for the hard disk drive (rather than rails) and the HDD connector is not rigidly attached to the board, so the connector absorbs shock and impact and protects against system damage.