Very good product fully meets my expectations, very fast and memory than almost all other brands, in any case in terms of money it is at the very first level other trademarks are much more expensive to stay ahead on Amazon ... A tip is to go for quality and allocated read-write speeds are exact ... For more details you can find the product details on the Samsung site. Well done Samsung for all its products there are really good and thank you to the very serious and fast seller. Impeccable service.