I need one for an 820 and a Surface and am not picky about the brand as long as it works. Please inform me.
The thing I don't like about Amazon is there are so many sellers, how do you know you're not buying a knock-off that may have lesser performance or shorter life? Plus you have the hassle of having to ship the thing back if there's a problem and the possibility of it getting lost in between.
I've made a hundred purchases off amazon and have never had a problem. A lot of times if I the item is defective or a new version of that model comes out, you can contact the seller and they'll send you a knew one and let you keep the defective one.
I've also purchased lots of stuff off Amazon. The fact remains that there are boatloads of Gray-market/Counterfit MicroSD cards being sold, often at much lower prices than the real item. If you want to play the odds with your hard-earned money trying to save a couple of sheckles, that's fine. I'll spend a little more to have less chance of a problem and if there is one, less hassle dealing with it.