Item details: Capacities:64GB Interface: USB interface, no drive, plug and play, hot-swappable Endurance: 1,000,000 times rewritable; Applicable models: the various brand PC and compatible computers, Macintosh, PowerBook, iMAC or iBook. Special design: earthquake proof, anti-electromagnetic waveOperating System: Windows 2000 / XP and above Power Source: USB bus-powered (4.5V ~ 5.5V)Operating Current: <50mA High speed Read & Write, maximum to 8mb/s Data Retention: 10years up USB 2.0 Hot Plug & Play Compatible Compatible with USB 1.1/2.0 Operating Temp: -10 to +55Deg.C Storage Temp: -20 to +55Deg.C Packing detail: 1 X USB Flash Drive All the USB flash drive send out before we are all tested ! REAL CAPACITY-THE REAL USB