plug and play USB CVBS AV capture grabber card works on Android NEXUS 7 (UVC webcam Compliant)

How to buy? http://www.febon.net/ UVC grabber card is uvc compliant. Without root, UVC USB CAM can work on the apk as below link ( table ) http://febon.blogspot.com/2014/07/no-root-nexus7-2013-vbersion-with.html More no driver UVC grabber card: 1.NO driver Driver free UVC CVBS (AV composite) grabber card http://febon.blogspot.com/2012/02/1.html 2.NO Driver Driver free UVC HD HDMI grabber card http://febon.blogspot.com/2014/02/febon188-uvc-usb-sdi-grabber-card-user.html 3.NO driver Driver free UVC 3G-SDI/HD-SDI grabber card http://febon.blogspot.com/2014/02/febon188-uvc-usb-sdi-grabber-card-user.html