5PCS 32GB 64GB 128GB Girevole USB Flash Drive Pen Drive Rotante USB Memory Stick
10PCS Rotating Pen Drive. Compatible with Windows 7/Windows 8/ Windows 10, Windows XP, Mac OS 9.0,Hi-Speed USB 2.0 port required for high speed transfer. No external power is required 4.5V ~ 5.5V from USB port.