... fast delivery 4.free logo printing 5.directly from factory USB pendriveSpecifications:1.Availabele capacity: 512MB,1GB,2GB,4GB,8GB,16GB ... .Data Retention:10 years mininum9.support boot up by USB-HDD or USB-ZIP mode10.Plug-and-play; no external power supply required ... , USB bus powered11.Provide OEM service, logo printing ,data preload, ...