... , ROSH,FCC 3, OEM & ODM Design 4, Short leading time USB FLASH DRIVE 1,DescriptionAvailable Capacities: 128MB, 256MB,512MB, 1GB, 2GB ,4GB ... Hi-Speed USB 2.0 Certified Compatible With USB 1.1 For Mac and PC, No Driver Req.* No External Power Required Functions ... Hi-Speed USB 2.0 Certified Compatible With USB 1.1 For Mac and PC, No Driver Req.* No External Power Required Functions ...