Lotto 1/5/10Pack 32GB 64GB USB 2.0 U Stick USB Flash Drive Penna Memory Stick
Storage Capacity: 64GB. No external power is required 4.5V ~ 5.5V from USB port. Compatible with Windows 7/Windows 8, Windows XP, Windows Vista, Mac OS 9.0,Hi-Speed USB 2.0 port required for high speed transfer.