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Run Ethernet Over Your Coax TV Cable

By - Source: Tom's Hardware US | B 6 comments

This week D-Link announced a new product called the DXN-221, which allows users to run Ethernet over existing coax cabling throughout their homes.

The product is aimed at users who prefer to run hardwired networking through the home, primarily for speed and security. In this instance, running CAT6 cabling through the home, especially one that's not already pre-wired, could be both troublesome and ugly. Most homes however, have coax cabling wired throughout for TV use and for the most part, the bandwidth available goes largely untapped.

With D-Link's new DXN-221, customers hook the node up to an existing Ethernet connection in one end of the house, and then at the other end, where it would be too troublesome to run Ethernet cabling to, you could attach the other DXN-221 node to a coax outlet. In most instances however, customers facing this situation have already resorted to using Wi-Fi for connecting their equipment as most computers and laptops these days ship with Wi-Fi connectivity.

Still, there are those who insist on wired speeds and security. However, because you're using coax cabling, transfer speeds will be limited to roughly 225 Mbit/sec. Although this is theoretically faster than 100 Mbit/sec. Fast Ethernet, it's nowhere near gigabit Ethernet speeds.

We think most people would settle for 802.11n instead of plunking more money down to run cabling over a coaxial connection.

However, if you're still interested, D-Link is selling the DXN-221 kit directly for $156 but retail cost is $239.

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  • 0 Hide
    mi1ez , 22 April 2009 03:09
    Good idea, but overpriced.
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    Anonymous , 22 April 2009 04:26
    lol old technology just rehashed with a new market :p  this is just a more up to date 10base2 coax and that stuff was a serious nightmare
  • 0 Hide
    will_chellam , 22 April 2009 05:18
    I dont know anyone who has coax running anywhere besides from their tv aerial to their tv, and i certainly dont see any great benefit to making my roof internet ready....
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  • 0 Hide
    massec , 22 April 2009 06:18
    arn't the Homeplugs a far better solution in terms of cost and locations?
  • 0 Hide
    tstebbens , 22 April 2009 19:21
    Ummm... so if you plug this in to your coax, some of the signal will get broadcast out of your aerial. In which case it would be relatively simple to pick that up and decode it. And Ethernet doesn't have any encryption...
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    ubertiger , 26 April 2009 21:59
    If I get this does it put the internetz on my TV?