SBJ400 "SBJ400"
There are a number of MicroSD manufacturers out there that offer large capacity cards like this. They claim to be Class 10 but when tested, prove to be closer to Class 6 cards in performance. This SanDisk card performs at the Class 10 level.I use these cards in various devices that NEED Class 10 speeds, such as my Android phone because of the data transfers I do for work and for the games I keep on it.If your device does not need Class 10 (you are just using it for simple storage of basic files like docs or ebooks) then you could probably save some money by going with Class 6. If the prices are very close, then you might as well spend the extra money and get Class 10.This card came with a nice plastic storage case and a SD adapter. The only reason I gave this 4 stars is because I feel the prices should be a lot lower by now. Inventory is plentiful and these are not cutting edge tech any more.