Grandtec is pleased to introduce the world"s first USB to HDMI converter. The Grand HD Cinema brings convenience by allowing customers to play media files stored on your PC on your large screen by converting the signal to HDMI. Simply connect the USB interface of PC to the converter using the included USB cable, and connect it to your home theatre system with a HDMI cable, then you can enjoy the high quality pictures (720p) and sound on your big screen.2U09691. 9691. Grandtec Grandtec Grand HD Cinema USB to HDMI Device.