NikKTech published a review on the Lexar Professional 1066x SILVER MicroSDXC 256GB and 2000x GOLD SDXC 128GB Memory Cards A quote from the article:

Consumers and professionals alike looking for a brand new microSDXC UHS-I or SDXC UHS-II card should seriously consider the brand new 1066X SILVER and 2000X GOLD lines by Lexar.

  Lexar Professional 1066x SILVER MicroSDXC 256GB and 2000x GOLD SDXC 128GB Memory Cards Review