... to anyone helping you in a medical emergency.. Key Specifications/Special Features:Capacity: 32, 64, 128, 256, and 512MB, 1, ... more than 10 yearsHardware compatibility: PC, notebook and Macintosh with USB portOperating systems: Windows 2000, XP, Linux 2.4.x, ... dimensions: Project dependent Net weight: 21gMaterial: Titanium Alloy Medical ID USB flash drive - store all your medical info on USB drive !