Manufacturer Specifications: Capacity 64GB Interface USB2.0/1.1 Data retention Over 10years Supports Win98SE，ME，2K，XP，Mac OS 9.2 above，Linux2.4.17 above Speed rates:Read: 15Mbps(2.0) 960Kbps9(1.1) Write: 10 Mbps(2.0) 860Kbps