... USB pen, High Speed USB 2.05. Data transfer speed for the USB pen, 15MB/s-21MB ... interface7. LED Indicator Light, LED Flashes when data is being read or written,8. Drivers, ... ,USB bus powered12. Provide OEM service, logo printing, data preload, autorun, customized programming, etc.13. Certification: ... information needed about our USB pens? Please feel free to contact Susan Chen,Mobile, +86-137 2422 ...