Ultrabooks

1.Compatibility
Any computer parts have compatibility issues, but Samsung as a world brand,with a good compatibility . if your device is too old, may not be suitable for the latest products

2.Capacity
Difference of Factory design and Electronic products to lead a capacity difference , available capacity will be about 90% -93%

3.Speed
Please test by H2testw and use good quality USB3.0 reader , speed is influenced by many different factors , interface, computer condition , test software ,systems ,use , etc .