Product name: Mini USB Flash Drive. Memory capacity: 512MB/1GB/2GB/4GB/8GB. USB Interface: USB1.1/USB2.0. Read-write speed: USB1.1 writing speed: 860KB/S reading the speed: 960KB/S USB2.0 writing speed: 11MB/S reading the speed: 12MB/S Hot plug-and-play. Operating System: Windows98/SE. WindowsMe / 2000 / XP, Linux2.4. X, Mac OS9.1/Mac OS X, Linux 2.4. X which support USB mass storage protocol. Data Retention: Over 10 years. No extra power supply required. More than 100000 times of write/read cycle endurance.