Extend a single dvi video signal up to 150ft over cat5 cablingr r extending dvi d video signals over cat 5 cable or better enables you to make use of existing ethernet infrastructure without the expense of costly proprietary cabling systemsr pure hardware design simplifies installation and set up with no software or drivers requiredr uses standard category 5 utp cable for economical and reliable data transmissionr r the st121utpdvigb dvi video extender over cat 5 utp lets you extend a dvi dig