Has anybody bought the likes of these 512GB flash drives out of china/hong kong? I'm planning to recover all the data from my past 5 laptops (pile of hard drives in my desk drawer) onto bootable media. Cheapest option would be the 3TB USB3.0 hard drive from Best buy, but I like the idea of having each drive on its own thumb drive. Domestic thumb drives at 512GB are few, far between, and prohibitively expensive.