Infocus Proxima

Hi all
i’ve got a quick question to ask, i wanted to know what would be the best way to hook up a proxima to a desktop to as where the proxima has a constant connection to the desktop without disconntecting the monitor. The system is a dell optiplex gx260 and i was going to use s video but the system dosen’t have a s video on the card. Any help would be greatly appreciated and have merry christmas