256 GB , Type MicroSDXC , Read speed 900 MB/s , Write speed 600 MB/s , UHS Speed Class Class 3 (U3) , Video Speed Class V30 , Flash memory class Class 3 , Colour Black/Red , Operating temperature (T-T) -25 - 85 °C , Width 15 mm , Depth 11 mm , Height 1 mm , Weight 708 g