V7 VU364GDR-BLK-3N 64GB USB 3.0 Flash Drive - With Retractable USB connector Retractable Design  keep connector free of dirt and dust High speed data transfer: Read  80MB/s, Write  25MB/s Impact-resistant with USB connector position lock slider Ideal for backup and portable storage Connect to keychain ring or purse for easy transportation Retractable Design - keep connector free of dirt and dust High speed data transfer: Read  50MB/s, Write  15MB/s Impact-resistant with USB connector position lock slider Ideal for backup and portable storage Connect to keychain ring or purse for easy transportation