Samsung Evo Plus 256GB MicroSDXC Card with Adapter, V30, A2, U3, 160MB/s, UK
64GB card is U1 rated, with transfer speeds of up to 160 MB/s. ²Stated performance is achieved by using microSD Card EVO Plus with Samsung readers. 64GB card is A1, V10, UHS-I rated. Actual speeds may vary depending upon card capacity.