Remember the days when a 1 TB hard drive was still a rare and expensive treasure? Well, now we're entering into the realm of double digits. And more than that, we're also injecting helium into them. That's exactly what Western Digital is boasting about as it announced the Ultrastar He10, what it bills as the world's first 10 TB hard drive that uses Helium instead of the traditional, plain air inside. Not only does it offer an extraordinarily huge amount of storage space, it also offers the lowest power consumption and highest reliability raiting, says WD.