Features: 1) Storage capacity: 64MB, 128MB, 256MB, 512MB, 1G 2) Super stable technology, complies with USB1.1/2.0 3) No driver needed in Windows ME, 2000, XP, Mac 9.1 or later 4) Size:14*R0.5*R0.7CM Weight: 37G Accessories : CD Driver and Software x 1 USB Extension Cable x 1 User Manual x 1 Neck Strap x 1 Gift box x 1