Fangrui Product Details 1. Richwell 3 In 1 16g Micro Usb + 8 Pin + Usb 3.0 Metal Rotating Push-pull Flash Disk With Otg Function(silver) 2. 3 In 1 (micro Usb, 8 Pin , Usb 3.0 )flash Drive 3. Installation: External 4. Material: Metal 5. Equipped With Usb2.0 Adapter. 6. Support Manage Data Directly On The Flashdrive. (create, Copy, Move,delete, Rename, Open And So On). 7. Format Support:common Image Format,such As Mp3, Mp4, Mov, Mpeg-4, Flv, Rm, Rmvb And Other Video And Audio Format.maximum Support 1080p.mp4 Video Format. 8. System: Support Ios7.3 Or Above, Android Phones With Otg Function, And All Windows Computers 9. About Real Capacity 10. Capacity Flash Memory Products Are Usually Shipped In Accordance With 1mb = 1000kb, 1g = 1000mb Computing, But The Operating System Using Binary Arithmetic 1mb = 1024kb, 1gb = 1024mb, So There Are Some Differences Between The Display Capacity And Standard Capacity Memory Products.this Is Calculation Difference Between Manufacturer And Our Pc 11. 8gb =approximately 7.2gb-7.5gb 12. 16gb=approximately 14gb-15gb 13. 32gb=approximately 28gb-30gb 14. 64gb=approximately 58gb-59gb 15. 128gb=approximately 115gb-120gb 16. Attention: 17. To Avoid Data Loss Or Mechanical Damage, Do Not Power Down Your Computer Or Unplug Flash Disk During Transfer. 18. Please Do Not Remove Your Usb Flash Drive When It Is Being Used Otherwise Your Data May Loss. 19. After Using Usb Flash Drive, It Is Better To Remove It As Soon As Possible. That Will Helps To Extend Its Storage Lifetime. 20. Please Do Not Format Your Usb Flash Drive Frequently, Otherwise The Usb Will Be Damaged Easily.