1) Capacity: 16MB / 32MB / 64MB / 128MB / 256MB / 512MB / 1GB2) USB interface: USB1.1 / USB2.03) Operation system: no drivers in Windows Me / 2000 / XP, Mac OS 9.X+, Linux 2.4.X+, drivers in Windows 984) Accessories: CD software, lanyard, USB cable, manual 5) Language supported: English, Simplified Chinese, Traditional Chinese, Japanese, Korean, French, Italian, German, and Spanish6) Write-protect switch 7) Operate without external power adapter