USB,Flash card ,flash menmory MP3 ,MP4 ,camera , video , digitial frame professional manufacture 1). fashion,cute ,classic style designing , best material with pro-high techenic 2)USB1.1/2.0 interface used to support hot-swappable, plug-and-play. 3), no external power, LED lights display. 4), storage capacity: 64 MB 128MB 256MB 512MB 1GB 2GB 4GB 8GB 5), the operating system: WIN98/SE/ME/2000/XP 6), electronic storage media. Anti-vibration, anti-electromagnetic interference. 7), and data security, long-term (over 10 years), can erase more than 1 million 8), USB1.1 write speed: 860 KB / S, read: 960 KB / S USB2.0 write speed :5-16 MB / S, read :10-22 MB / S 9), the working environment temperature: -40 ° C ~ +70 ° C, storage temperature: -50 ° C ~ +80 ° Cno external power, LED lights display. 4), storage capacity: 64 MB 128MB 256MB 512MB 1GB 2GB 4GB 8GB