This product fails miserably to deliver expected high speed transfers. Samsung claims file transfer speeds are UP TO 130 Mb/s. Technically, this is true, but only because any number between 0 and 130 can be considered UP TO 130. The reality from my experience is a high of 23 Mb/s, an alarming 107 Mb/s slower than the potential highest speed. Yes, I know many factors have to be considerd - internet connection, computer,etc. While my setup is far from superlative, it is certainly capable of file transfer speeds of up to 130 Mb/s. I use a Lenovo IdeaPad 3. Connection is Xfinity Broadband with speeds up to 300 Mb/s. My computer and one mobile phone are the only devices connected to the network. One star out of five is a generous rating - 20 percent of a perfect five ... MoreThis product fails miserably to deliver expected high speed transfers. Samsung claims file transfer speeds are UP TO 130 Mb/s. Technically, this is true, but only because any number between 0 and 130 can be considered UP TO 130. The reality from my experience is a high of 23 Mb/s, an alarming 107 Mb/s slower than the potential highest speed. Yes, I know many factors have to be considerd - internet connection, computer,etc. While my setup is far from superlative, it is certainly capable of file transfer speeds of up to 130 Mb/s. I use a Lenovo IdeaPad 3. Connection is Xfinity Broadband with speeds up to 300 Mb/s. My computer and one mobile phone are the only devices connected to the network. One star out of five is a generous rating - 20 percent of a perfect five star rating. The product itself delivers less than 18 percent of its alleged potential (17.69 percent of its alleged top speed). I am impressed by the enormous storage capacity (477 GB) but that is overshadowed by its dismal speed performance. Overall, performance was most important to me with this product, far outweighing features and design, resulting in a deserved one star rating. I will credit Samsung for its phrasing of "UP TO" involving transfer speed. It is not a lie, it's just unlikely to happen. In the same context, everywhere is within walking distance if you have the time.

I am usually a fan of sanDisk Ultra or sanDisk Extreme for my iPod classic HDD to microSD card conversion. (Now 256gb expandable upto 4Tb). I have 11600 songs to sync when I have freshly restored an iPod 7th gen.Just one 128gb Samsung Evo microSD card (keeping the other 128gb sanDisk Ultra, to total 256gb) has reduced my syncing time by one hour.Reviews online show the Evo write speeds are about 2.5 time faster.I am impressed with my choice of Samsung for this application and great value.

I’ve used it for continuous recording on a 4K security camera for a few weeks now. I wanted to use a trusted brand for my camera as this is for my home security. The card handles all the formats of the security camera very well. I’ve used different resolutions and it performs to class U3 specs flawlessly.I’ve used the card outdoors now, it performs as advertised. It works exceptionally well in snow, cold, and rainy weather. During ice cold weather it recorded 4K without issues.I recommend this card as it is very reliable and well built and comes with everything you need.