... :DHL, UPS,TNT 5,OEM 1) Bean USB flash drive2) Suitable for using large capacity of computer or small size laptop ... 3) High speed, at least 10 years of data retention 4) USB ... .15) Plug-and-play; no external power supply required, USB bus-powered 6) Capacity: 256MB, 512MB, 1GB, 2GB, 4GB, ... the same. We have many years on this field. usb flash drive