The Kramer VP 731 is a 9 input scaler/switcher for analog video, digital video, balanced stereo and S/PDIF audio signals. It up or down scales composite, s Video (Y/C), component video (YUV), HDMI, computer graphics video and JPEG files to a selectable computer graphics video or HDTV output resolution on one HDMI and two 15 pin HD outputs. It includes a power amplifier to drive loudspeakers. The unit provides glitch free switching between sources through FTB (fade thru black) switching technology. The VP 731 is the same as the VP 730 with the addition of Ethernet control. Best suited for projection systems in conference rooms, boardrooms, auditoriums, hotels and churches, production studios, rental and staging or any application where high-quality conversion and switching of multiple and different video signals to graphical data signals is required for projection purposes.