The card makes a stable impression, work (as expected) problems in my Sony Alpha 77 and is very fast, especially when one considers the extreme compared to a Sandisk Pro moderate price into account: So I have a Kingston FCR -HS3 Media Reader 87 MB / s read and 47 MB / s write speed reached (see the CrystalDiskMark in the gallery).
Problems, however, made the card in my internal Ultron 75-in-1 card reader: Here I could 7 64-bit access with Windows only read out a writing or formatting was not possible.
In conjunction with an appropriate reader, the Sony SF32UX is therefore highly recommended!