Specification: USB 2.0 with high speed Small and exquisite/Coca Cola bottle shape Durable and shock-resistant Class A chip Memory capacity: 128MB to 4GB Solid-storage and remain data for at least 10 years USB plug-and-play connectivity and no driver needed except for Windows 98 Automatic system detection as a removable disk High-speed USB interface and no power needed Compatible with Windows 98, 2000, Me, or XP, Mac OS 9.0 or higher and Linux 2.4 or higher Double start-up function Data storage: 10 years Maximum write speed: 900Kbps Available colors: white, black, red Packing: packed by Iron box Package Size: 20.0 * 18.0 * 15.0 ( cm ) Gross Weight/Package: 1.5 ( kg )