A__(Do not delete the file)  B__(File Encryption) C__(PnP Plug and Play)   Our company has specialized in USB flash disk.1GB,2GB,4GB,8GB,16GB,etc. Be applicable to: 1,Promotion Gifts 2,Sales method tool 3,Market research on line,4,Electronic catalog 5, Recruit online recruitment 6, Product publicity or publicity of Laws and regulations on line 7,A red-letter day Souvenir,etc. In support of:A, Do not delete the file;B, File Encryption;C, PnP Plug and Play. Also, We can accept OEM orders from customer designs or brands.