The Leef Surge USB Drive is small and simple, not visually vulgar when it is plugged into your laptop, or car stereo. The Leef Surge cylinder design is easy to grip for plug in or removal and strong enough to leave in your device almost permanently. Leef Surge was designed for people who require a reliable USB drive that is superior on the go. SPECIFICATIONS Capacities: 8GB, 16GB, 32GB, 64GB Colors: Black-White Operating Temperature: 0°C - 60°C Storage Temperature: -20°C - 85°C System Requirements: Windows® 8, Windows® 7, Windows® XP (SP3), Windows Vista® (SP1, SP2), Windows 2000®, Apple® Mac OS X or later Regulatory Compliance: FCC, CE Warranty: 10-year limited warranty