Dell Inspiron 11 3000 Z511241AU 11inch Laptop We test Inspiron laptop hinges to ensure they still feel tight, even after opening and closing the lid 20,000 times. We test commonly used keys for 10 million keystrokes and touch pad buttons 1 million times with no failure. So go ahead, finish your novel. Call us excessive, but after twisting an Inspiron laptop's base and lid more than 25,000 times, we can assure you the parts inside are well protected. The compact size and long battery life are ideal for mobile media and the lightweight body will never weigh you down.