X Digital Media 512MB USB 2.0 BLADE Drive 512 MB Storage Capacity 8 MB per second, sustained Read Speed; 7MB per second , sustained Write speed. Thumb Size, compact design PRE-LOADED, SecureLOCK software protects files, partitions and your entire drive. Plug-N-Play, no drivers required for Windows ME, 2000, XP, or MAC 8.6+ , Linux 2.4+.