Specifications: 1) USB 1.0/1.1/2.0, transfer speed: 480MB/s 2) Storage capacities: 64MB, 128MB, 256MB, 512MB, 1GB 3) Pen style: Flash- disk can be used as a pen 4) Can be used as a touchpen for laptop. 5) Speed: 900Kbps (read), 700Kbps (write) 6) DEFT configuration, shockproof and moisture proof 7) Data retention: Over 10 years 8) LED indicator 9) Compatibility: Windows 98/SE (requires driver), Windows ME, Windows 2000/XP, MAC OS 9.X, MAC OS X, LINUX 2.4. X (featuring for USB mass storage support protocol) 10) Power supply: Does not require an external power supply 11) Cover is made by copper, chrome-plated, fluently written, easychange, ballpoint durable used. 12) Using times: Write & erase over 1 million time. 13) Color: Silver 14) Operating current: <40mA 15) Suspend current: <300 μ 16) Operating temp: - 20oC - +70oC 17) Storage temp: -50oC - +85oC 18) Under operation: 5 - 95% 19) Under storage: 1 - 98%