1.Ball pen+USB mobile storage,ideal choice for gifts 2.Capacity available and optional:64mb/128mb/256mb/ 512mb/1gb/2gb pliant with USB1.1&2.0 4.Portable data storage device,retention:over 10years 5.LED indicator 6.System requirement:Windows 98/ME/2000/XP 7.Hot plug and play 8.USB bus-powered,no external power requiried 9.USB1.1:Read speed:960kb/s, write speed:860kb/s USB2.0:Read speed:12-22mb/s, write speed:8-16mb/s 10.Shockproof,moisture-proof and magnetic-proof