Shop Coax Adapters | GCA-1200-KIT - NexusLink


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Wireless Deadzone

Let’s change that. Deliver a direct connection to your most bandwidth-heavy devices today! The GCA-1200-KIT is NexusLink’s best selling Coax Ethernet Adapter Kit that turns your existing electrical wiring into an ultra fast and reliable network. 

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What do Coax Adapters do?

With the GCA-1200-KIT you can now:

Expand Internet to hard-to-reach locations

Reach remote rooms like work from home offices, game & media rooms tend to be in wireless deadzones (basements, garages, rooms further from the router).

Experience enhanced video streaming with

Forward Error Correction (FEC) technology is designed to improve video quality and minimize video lag.

Leverage your home's existing coaxial cables/network

Take advantage of the low-cost network infrastructure you already have to deliver an affordable extended network connection

Key Benefits

Easily recreate the experience of a wired connection using the GCA-1200-KIT Coax Adapters for better network performance

Turn Coax Cables into an Ultra-Fast Network

Deliver a wired connection without running cables through walls

Save time with plug and play installation

Secured with AES128 BITS Encryption

How it Works Powerline Adapters make it easy to deliver a direct Internet connection to your favorite devices anywhere in your home.

Connect Adapter 1

Plug Adapter 1 into the power outlet closest to your network device and attach it to your network device. 

Connect Adapter 1

Connect the coaxial cable to the “IN” of the Coax Adapter and to a cable wall outlet.

Connect Adapter 2

Plug Adapter 2 into the power outlet closest to your Internet-enabled device.

You're Connected!

It’s as simple as that! Need to connect more devices? You can have up to 32 adapters in one coax network– which means you can connect up to 31 more devices.

Sound like the right solution for you? Get the GPL-1200-KIT Here!

Click Image to Get a Closer Look Coax Adapter | 1.2 Gbps | 2-Unit Kit

NexusLink’s Ethernet over Coax Adapter (GCA-1200) is the first standards-compliant Ethernet over Coax adapter. It allows users to extend a local area network via existing coax cables and therefore provides an inexpensive option for a fast wired, Internet connection. The GCA-1200-KIT comes with 2 Adapters– everything you need to start your very own Ethernet over Coax network. 

Note: The GCA-1200 will coexist with most services such as Broadband, Satellite, and FTTx, however, it is not recommended in environments where Cable Services (Internet/TV) are being used.

$89.99 + Free Shipping

Product Details

Existing coaxial cables are already installed throughout many homes and businesses. When these existing coaxial cables are NOT being used for passing Cable TV/Cable Internet services, these coaxial cables provide a perfect physical medium to create a high performing Internet connection. The combination of low interference coaxial cabling plus the efficiency of the video-optimized standard enables the best real-world Internet performance.


  • Turns Coax Cables into an Ultra-Fast Network
  • Works in Collaboration with FTTH Deployments
  • Enhances the Video Streaming Experience via
  • Introduces a Low-Cost Networking Alternative


Weight2 lbs
Dimensions9 × 7 × 6 in
Technology Coax Ethernet Adapter


DC power jack X 1, F-type connector for built-in diplexer of 100MHz (optional), Four RJ-45 for Ethernet connection


10/100/1000 Mbps BaseT auto-sense, Auto Rate and Duplex Negotiation MDI/MDX Support, Standard IEEE 802.3


FEC, Flexible Frequency Configuration, OFDM, PHY Rate Up to 1200Mbps


Firmware upgrade via TFTP, HTTP Web-based Management


AES 128 Bits Encryption Ensures Total Data Security, Configuration Button for Factory Reset


3.90 x 2.67 X 0.96 in; 99 x 67.7 x 24.5 mm

Environment Condition

Designed for Indoor Use Only, Operating temperature: 32~104F (0~40e!C), Relative Humidity: 8~95% (non-condensing)


FCC, ITU-T Standard

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NexusLink's Response to Coronavirus (COVID-19) Please note: All of our services are still fully operational. We continue to monitor the situation daily while taking the necessary precautions to ensure the safety and well-being of our staff and manufacturing partners.