At the time of this writing, the Buffalo MiniStation Shinobi is the world’s smallest hard disk drive (not flash drive). The drive has a thickness of only 5mm, and weighs a mere two ounces. It features a stylish glossy black housing as well as TurboUSB technology, which delivers up to 20 percent faster transfer speeds than standard external drives. The Buffalo MiniStation Shinobi is compatible with Windows and Mac PCs and is available in 30GB ($120) and 60GB ($170) capacity models.