Features: ● Read Speed: 10MB -18MB/second ● Write Speed: 5MB -8MB/second ● USB 2.0 interface with higher speed and higher stability ● Portable, lightweight, high-quality metal protects the connector ●Environment Temperature: -40°C - +70°C ●Storage Temperature: -50°C - +80°C ●USB Service Voltage: 4.5V-5.5V ●Storage Lifetime: More than 5 years ●Use A-class chip, can be erased repeatedly for 100,0000 times ●Operating System: Win98/ME/2000/XP/ Vista/win7 /win8, Mac OS 9.X/Linux2.4 or above ●USB connection:support Hot plug & Play.