Details

 
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.
●Easy to read and read in high speed ; No need drive/power supply only plug in.
 
About capacity:
64GB = approximately 58GB-60GB
This is calculation difference between manufacturer and your PC; please Google 'Memory card capacity' to get more information.
Your PC says 1GB = 1.073741824 Billion bytes where Market Defines 1 GB = 1.00 Billion bytes.