1.support all kinds 7inch,8inch ,9.7inch10inch mid,laotop,tablet pc 2.support android,NCE,Rockchip os 3.mini usb port 4.DGKF 1.support all kinds 7inch,8inch ,9.7inch10inch mid,laotop,tablet pc2.support android,NCE,Rockchip os3.mini usb port4.DGKF 7inch 8inch 9.7inch 10inch mid tablet pc laptop leather case with keyboard