Jewelry Peacock USB Flash Drive Supports Microsoft Windows Vista ReadyBoost Ideal for promotional gift USB memory: 128MB to 16GB USB flash disk supports USB1.1/USB 2.0 specification Portable data storage device Built-in NAND flash memory chipset Original new brand flash chipset (Samsung, Hynix, Micron, and Infenion) Supports Plug-and-play and hot-swap function Password protection MLC flash chip: Writing speed: 2 to 3Mbps Reading speed: 8 to 10Mbps SLC flash chip: Writing speed: 6 to 8Mbps Reading speed: 10 to 12Mbps USB stick supports Microsoft Windows 98/XP/Vista (2009 version) operating system Accessory: External USB cable (optional) CD-title driver (optional)