It's a class 4, GB microSD card. What is there really to say about it? It stores information as it should, and the transfer rate for it, while moving MP3s is rather decent in my opinion. Works perfectly in my Asus Eee PC 701 4G. Good product for the money.

On a little side note, if you're going to use this with a Motorola VE240, be prepared for longer than normal load times. The phone seems to index all the MP3s on the card, each time you load the music player. It could be, because the phone isn't very powerful (as phones go) and no fault of the card itself. That got annoying to me, and I just went back to the 2GB card that came with my phone.Get more detail about Kingston 4 GB microSDHC Class 4 Flash Memory Card SDC4/4GBET [Amazon Frustration-Free Packaging].