... 4.Fast&Cheap delivery:DHL, UPS,TNT 5,OEM 1) Bean USB flash drive2) Suitable for using large capacity of ... least 10 years of data retention 4) USB specification 2.0 compatible with USB 1.15) Plug-and-play; no external power ... supply required, USB bus-powered 6) Capacity: 256MB, 512MB ... same. We have many years on this field. USB flash disk