a_compulsive_reader
Liked the first one I purchased so much, I bought a second one. Very, very fast read and write speeds at a good price, plus SanDisk has the best software and device compatibility.  Forget thumb drives - this is your most flexible, durable option.  Use direct in your tablet or smart phone and/or buy a decent usb card reader you can load this in and, voila, instant super-speedy, upgradeable thumb drive.  Works great in my tablet and in my newer card reader - and still kicks the butt of every thumb drive I know of even when used with my old plastic USB 2.0 card reader held together with scotch tape, lol.  Have purchased several microSD cards since they first came out, from 2GB to 32GB, and all still work fine - I cannot say the same re the thumb drives I purchased during that same time period.One point - beware of counterfeits.  Samsung is the number one brand so, unfortunately, they get counterfeited a LOT.  So check reviews and only buy from a reliable seller.  I suggest buying direct from Amazon (or Memory Mogul) - I have purchased from both with no issues.