D-Link finally ships the DXN-221 Coax Ethernet adapter

It's taken almost a year, but D-Link is finally shipping its DXN-221 Coax Ethernet network adapter. The MoCA-certified box does exactly what it says -- it turns your existing coax cabling into a giant Ethernet network without interfering with TV signals, allowing you to get hardwired network speeds anywhere in your house without having to run Cat6. A pair will set you back $239 at retail, but it looks like D-Link is selling them direct for $156.

[Via HotHardware]

[(Unverified) Posted Apr 21st 2009 3:02AM]

The return of 10-base 2!!!

[(Unverified) Posted Apr 21st 2009 1:16PM]

I wonder how many of the people on here read that and had to go Google it.

Old Techies FTW!

[scyber Posted Apr 21st 2009 8:20AM]

Still cheaper to buy 2 motorola nim100 or used fios actiontec routers on ebay. Both can be found for under $50 each. nim100s are starting to dry upr though.

[(Unverified) Posted Apr 21st 2009 1:15PM]

I think ATT U-Verse uses MoCA already in home.

The Gateway device has 4 Ethernet outputs but also has a Coax Output.
The STBs and DVR all have both Ethernet and Coax as well.
My installer chose to go CAT5/6 as I requested it, but he said you could use Coax as well.

Based on all that, I wonder if you hooked up only 1 of these DLink MoCA devices to the same Coax that your Gateway is also connected to, if you could connect to other devices in your home on the CAT5/6 side of the house. Basically use the Gateway as a bridge.

If so, a 2 pack from DLink would mean 2 computers could get on the net rather than acting as a bridge.

[(Unverified) Posted Apr 21st 2009 1:36PM]

ATT UVerse uses HPNA which doesn't communicate with Moca but might coexist in the same network. Verizon uses Moca so you should be able to add a Dlink bridge to the existing network and have everything talk to each other, including the gateway. See

http://mocablog.net/faq/

That way you can use both Dlink adapters to connect PCs and use the gateway as the Moca router.

[spin cycle Posted Apr 22nd 2009 12:41PM]

Are you kidding? Broadband coax has truckloads of throughput. Far more than twisted pair.

http://en.wikipedia.org/wiki/Shannon%E2%80%93Hartley_theorem

If you had a wire with 1GHz bandwidth and about 40dB signal to noise, it'd have a possible bit rate of almost 6 gigabits.