Join Date: Aug 2013
Location: Franklin, TN (mostly)
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There's no absolute answer. CAT5 is rated for 100 Mbps (fast ethernet) at up to 100 meters long (328 feet). You may get gigabit speeds (1000 Mbps) over CAT5 but it will probably be over shorter lengths. How much shorter? No one knows and it will depend on the quality of the cable, the crosstalk, electrical interferences, etc.
It will probably be fine for a single HD video stream or two, but I don't know how many could go over the same line without starting to see degradation. I'd try it with one or two cables and see what kind of transfer speeds you can get. Alternatively, if you have to reterminate the ends anyway with RJ-45 plugs, buy a spool of CAT6 and use the CAT5 to pull the CAT6 through the walls to the same outlet. 1000 ft of CAT6 is about $150 at Home Depot (cheaper at Monoprice).
Last edited by dfkimbro; 08-12-2014 at 05:19 PM.