There are a lot of USB flash drives on the market and there are a number of ways of transferring files from mobile devices to computers. The Leef Bridge 3.0 is both.
The latest Bridge is a USB 3.0 flash drive with a trick up its sleeve. Available with 16GB, 32GB and 64GB capacities, this relatively small drive has both USB and microUSB connectors so it can transfer files between computers and your microUSB equipped tablets and smartphones. It is Windows and Mac compatible, but Apples proprietary connectors of course mean iPads and iPhones miss out.
Support varies and in fact I needed to install a third party file manager to use the Bridge 3.0 with my Nexus 7, but not on an LG Flex review unit from AT&T.
Leef says its newest Bridge is high-speed USB 3.0 equipped. While it is speedy enough, it was not as fast as my old USB 2.0 Patriot Rage XT 8GB drive. Still, it was able to soak up a 128MB movie file in about 20 seconds and transfer it to my Android tablet in about the same time. The handy gadget is much faster though at transferring large files between devices than any of my could services which are often hampered by stifling upload speeds throttled by internet service providers. It also avoids wireless data usage. Try that over a cloud service.
The Leef Bridge 3.0 starts at $19.99 for the 16GB version which seems reasonable given the versatility. It is relatively compact at just over 1.5-inches long.