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so the house already has some ethernet wall sockets which I believe were installed when 100Mbps was more common. The cable current in used seemed to indicate that's it's not gigabit capable. I want to rewire it to CAT6. Do I need to change the sockets as well?

I looked at eBay at several wall sockets supposedly designed for CAT6 but I can't see any difference to my untrained eye.

Thank you for the help. :)

marked as duplicate by JakeGould, karel, DavidPostill, mdpc, nc4pk Jan 5 '16 at 4:04

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  • 5
    superuser.com/questions/663732/… – Tyson Dec 26 '15 at 1:51
  • 2
    Thats odd, since regular old Cat5 will carry gigabit without difficulty, but cat 4 will not carry 100megabit, so it is unclear to me how it can be 100BaseT capable, but ot 1000BaseT. Anyway, to directly answer your question, if the sockets have 8 pins, then you can reuse them. If you are goign to go to the trouble of rewiring however, you might as well replace them. – Frank Thomas Dec 26 '15 at 3:29
  • Unless you have a lot of experience with cable installation and a very, very expensive cable tester, Category-6 cable will be a waste of money since you couldn't install it to pass the Category-6 test suite. Category-5E will run gigabit, if properly installed. A cable system has the rating of the lowest component (patch cord, terminations, horizontal and vertical cable, patch panels, etc.) in the system, so you will need to use components of the same rating, or you will be wasting money. – Ron Maupin Dec 26 '15 at 5:07

Different wall jacks and cables have different CAT ratings. This is a quote from http://EzineArticles.com/1237951

Category 5-100 mbps-100 meters (328 feet) 
Category 5e-1 Gigabit/sec-100 meters (328 feet) 
Category 6- 3 Gigabit/sec-100 meters (328 feet) 
Category 6A- 10 Gigabit/sec-100 meters (328 feet)

As long as you use cable AND wall jacks rated at the CAT rating that corresponds with your speed requirements, you will be fine.

An a related note, if you are on a budget Cat5e is fine for most homes as most home gear these days is only rated at 10/100/1000 MB/s. If you have a bit more money to spend and you want to be 'future proof' then you could choose to use Cat6 or Cat6a cabling and wall jacks.

  • Note that Cat5 will carry 1000BaseT. The difference between cat5 and cat5e focuses on reducing crosstalk, but the operating frequency (analog bandwidth) is identical (100Mhz). In fact, per wikipedia, most cables sold as Cat5 could obtain certification as Cat5e with no alterations. en.wikipedia.org/wiki/Category_5_cable – Frank Thomas Dec 26 '15 at 4:48

Based on experience, you're unlike to find any trouble using existing sockets and maybe some of the cables as well (as long as they have all 4 pairs instead of just 2). I have used many old dodgy cables in my GbE setup and very rarely had problems (at short distances at least).

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