1, USB hid interface device. without driver application at Windows xp/vista, Linux operation system. Especially USB keyboard host ,
the programmable mcu read usb key information, then transport data to other device with RS232. But the special funcation mice
need fliter driver. We can development it.

2, Design&development the keyboard firmware by ourself, with cheap Taiwan mcu. Furthermore we can program pc software ,
Such as dll and lib. Achieve the special funcation keyboard ,including usb laptop keyboard .

3, Low power and only one physical usb interface , combine other usb class .such as trackball mouse, user-defined hid class.
PRO-E Structure design.

4, Pass WHQL, EMI test. assist UL/CE/GE certification .

USB interface software developer ShenZhen China

Detail: www.usbdll.com email:zengyqag@163.com