Built for the ExtremesIntroducing the next generation in industrial-strength storage - the LaCie XtremKey USB 3.0. If you want to push the limits of speed, capacity, and security for your data, the LaCie XtremKey was built with you in mind. It features transfer speeds up to 230MB/s, capacity up to 64GB, and the ability to withstand crushing pressures, oceanic depths, and extreme temperatures. The LaCie XtremKey is about as hardcore as external storage gets.Extremely SecureWe've put it to the test, and the XtremKey USB 3.0 is LaCie's strongest, toughest USB key yet. Its ZAMAC metal alloy construction withstands severe shock, relentless pressure, dizzying drops, and temperatures as bone chilling as -30°C (-22°F) and as scorching as 200°C (392°F). It features heat, cold, drop, shock, and pressure resistance to protect your data from the outside elements, plus AES 256-bit software encryption to secure it from the inside.