The LaCie MosKeyto measures less than 20mm and weighs 10 grams, making it one of the smallest USB keys on the market. It becomes nearly invisible when plugged in, and can even travel alongside your laptop in a protective sleeve or briefcase - just plug it in, and forget it. Since it lies flush against your device, you'll never lose it, and there is no risk of damage to the USB port, computer or key if the drive is knocked or bumped.