It seems faster than the 4GB that I had, but I have not time ... she does not suffer from excessive delays in writing anyway. In reading, so you can watch MKV carefree.
A comment before criticizes the lack of cap for the USB connector, but frankly it is not a sensitive part, the connection is via 4 large contacts that will not be bothered by a little dirt or dust. I regularly lose the caps of my other keys, and I do most has long sought.
This key is not fitted with LED to see if it works, but I rather look at what is happening on the screen and it do not bother me.
What counts here is the price - quality ratio is very good to him, and compactness allows the slide door in a carefree sheet or in the pocket of jeans, at the risk of forgetting and see passing in the washing machine, who knows if it will work again after drying.
Very good product, I recommend.