In this case, though, simplicity trumps capacity. Though the iXpand is conveniently small, keeping it that size means the amount of available storage won't be gargantuan. Also, since you're using the Lighting port, you can't charge your iDevice at the same time. The Lightning connector brings a few advantages: it's much faster than going wireless, it's easier to use and much more reliable. In the world of storage expansion for the iPad, the iXpand is the first I've seen that uses the Lightning connector (the rest use Wi-Fi to transfer files).

Dong Ngo/CNET Simple yet affective design

The iXpand Flash Drive is basically a regular thumbdrive with a Lightning connector.