• Brand new
  
•  32GB, 64GB, 128GB, 256GB, 512GB  of external memory
  
• Plug & Play
  
• Optimal speed and performance for SDXC compatible devices
  
• Class 10 speed (based on SD 2.00 specification)
  
• Holds countless amounts of data, music, video, images etc.
  
• FREE SD Adapter is included

Compatibility:

• Mac OS
  
• Windows
  
• iOS
  
• Android

• 1 x  32GB or 64GB or 128GB or 256GB or 512GB  Micro SD  memory card &  SD Adapter
• PLEASE CHECK YOUR SMART PHONE OR TABLET EXTERNAL CAPACITY
• 
  
• 
  
• If you've still got precious files you want to recover on your USB memory stick, please try these solutions:

  1.Try a different USB port

  2.Do you need to update the driver..?

  3.Error-checking, Windows may be able to detect the error with your USB stick.

  4. Format the USB stick-The final step you can try is formatting the USB stick, but this will delete everything.

  5. Some times memory sticks have problems due to weather contitions: humitity, extream temperetures, might  fall down, manufacturer error e.t.c..