No longer recognized / no longer works on any device: Samsung tablet running Android 8.0 Note 4.2.2, or in SD card readers on 2 PCs running Windows 8.1.. Unable to reformat the card which is nevertheless recognized by this material.
I contact customer service of Amazon.com, very polite interlocutor offering me immediately exchange within 24 hours. What a remarkable service policy in this Amazon!
I hope I have better luck with the new card microSDXC Class 10 UHS-I 64GB