SD card speed

Phan__

Estimable
Jan 2, 2016
1
0
4,510
I just bought this SanDisk Ultra MicroSDHC card said speed upto 80Mb/s but when i test it on my phone it reported with read 49Mb/s and write at 13.65Mb/s. I cant read it with adapter on my laptop either just through phone. Any idea ? Did i buy a fake one ?