(Original chip) Data Retention: Up to 10 year Certificate: CE， FCC Operating Temperature: 32�� F to 140�� F (0�� C to 60�� C) Storage Temperature: -4�� F to 185�� F (-25�� C to 85�� C) Power consumption: 4.5V - 5.5V Support OS: Desktop or notebook computer with USB port Windows 7， 8 Window Vista Window XP / 2000 / ME Macintosh Mac OS 9.0 or later and Mac OS 10.1 or later Note: Speed may vary due to host hardware， software and usage. Read: Slowest 4MB/s， the fastest 25MB/s， Write:Slowest 2MB/s， the fastest 12MB/s.