1) usb 2.0 port 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. Product features:1, do not delete the file;2, file encryption;3, pnp plug and play. Also, we can accept oem orders from customer designs or brands.
