Out of curiosity, where did you buy it?
If it's eBay, there's the possibility that the device is counterfeit - not actually a "Kingston Data Traveller" at all but instead a no-name device of dubious size and quality purposefully made to resemble a product from a known brand.
By some statistics, the majority of "branded" flash devices on eBay are actually fakes, though some are so good that the purchasers don't even realise because at least the size really does match what's printed on the packaging.
I have no idea whether that is really what's causing the disparity in your case but I thought I'd mention the possibility. I hope I'm wrong