There really isn't a market for what you are wanting to accomplish. There are 25-pr terminated but those are for extending RJ-21X-type of connections.

You don't mention if you are attempting to extend Cat 3, Cat 5, Cat 5e, Cat 6, Cat 6a or Cat 7 or if you are expecting to pass certification or just wire-map or if you have "Special Circuits" that are now or in the future that also need to be extended.

There are many options with the easiest being to grab a box of the appropriate cable and install the appropriate 8P8C modular clip on one end and simple 568A/B termination of the new location.

You could also use a 25-pr CatX for every three ports, but that's will save you neither time nor money unless you gave it in stock.

Dean
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