At the time I bought this set, we had DirecTV. We had an HR44-500 and a Genie Mini here in the house and a second Genie Mini in an external building away from the house. The second Genie was served by a buried coax cable that is about 300 feet in length. The HR44-500 has a built in wireless Deca to provide an internet connection to the system so that the Genies can function properly. My goal with the Deca's was to provide an internet connection to the external building for a smart TV.I started connecting the Deca system by disconnecting my HR44-500 from the Wi-Fi. Next I connected one of the Deca's via the provided ethernet cable to my ISP modem, then I ran a coax cable from the Deca to one of the terminals on the SWM splitter. Luckily my internet connection is close to the SWM splitter. Next I connected the provided power supply to the Deca and verified that I had an internet connection at the HR44-500. I then went to the external building and connected the other Deca to the SWM connector at that end. I then connected the Smart TV via an ethernet cable and connected the power supply to the Deca. I powered on the Smart TV and it connected to the internet. It's that easy! It provides an internet connection over the same coax cable without interfering with my DirecTV signal at all!With this Deca set I was able to provide a wired internet connection for my Directv setup and I used my existing coax cable to run an internet connection to a building that was too far away for a router to reach. If this hadn't worked, I was looking at either burying a Cat 6 cable or installing an expensive point to point wireless bridge to reach the other building.About a month ago I decided to cancel my DirecTV service and go with a streaming service instead. I sent back my DirecTV equipment and left the Deca's in place, along with all of the existing coax cables. My internet connection is still going strong at the second building. I can stream 4K content seamlessly. I recently installed a wireless access point at the second building and made it an extension of my home network. I used the same SSID and password as my home network so my devices will roam between access points as I go between the house and the other building. Having an access point at the other building means I can airprint and also access all the devices on my home network from the other building.I haven't had to touch this system since I installed it, it just works!

Saw another review stating that the " DIRECTV Broadband DECA Ethernet to Coax Adapter" worked for their Telus box, so thought I would give it a try. Our upstairs TV is simply too far from the low voltage panel and router location to get a strong signal, and my only wired option available was coax. Previously, the box was suffering from drop outs constantly in audio, and occasional freezing video, and this has completely solved that. I am using a regular HD box, not 4K, so can't speak to if it would keep up with needed data rate for that, but for regualr HD we are having zero drops in signal. This was plug and play out of the box; no tweaking needed. For Telus folks, the ethernet needs to be plugged directly into your Telus router, not into a 3rd party mesh (if you have that). I'm super happy that I can now turn off my Telus wifi and use my much more solid mesh system, with one less thing to interfere with the mesh signal.

Work well and allow you to use existing or newly installed coax cable for connecting computers or any other devices via ethernet. Provides a stable and reliable connection allowing you to use coax cable to connect devices to your network switch or internet router without having to run new ethernet wire through your walls and is good when you need a constant hardwire reliable secure network connection dont want for things like security camera servers or nvrs which you wouldnt want to use wifi which has bandwidth limitations it is less reliable as it is less secure and is prone to signal loss which can result in dropped connections that can cause laggy video footage and dropped frames

I wanted a faster connection to my internet router than my WiFi was providing. While I have a 100mbs internet connection via Ethernet plugged into my router, I was only getting 45mbs over my WiFi connection. And in several parts of my house it was a low as 18mbs.I tried the "powerline" Ethernet devices that plug into your electrical outlets but while it improved the speed to 30-40mbs in parts of the house with a poor WiFi signal, I had intermittent issues. Sometimes the connection would drop speed dramatically or even lose the signal for a few seconds periodically. I suspect it was related to other electrical appliances that would kick in around the house that muddied the signal. In any case, I had to send those back as it was too unreliable.I then ran across these devices that would use the existing coax in my house and since I not longer had a Coax TV service in my house the cable had no signals at all on them. In addition, since these were so inexpensive I decided to give that a try.The setup was easy as all I had to do was go to where all the coax connections were still tied together from my old dish-based TV service and reconnect the cables. I found the cable that went to the room where my internet router was and changed that to the input. Then made all the other cables outputs on the splitter.I hooked up one of these devices to the router and screwed the cable into the coax connection in the wall. Then, I went to the room where my home office is and connected to the coax connection there and plug the Ethernet cable into my computer.I immediately had a 80mbs connection running into my laptop! I have used it for a week now and have not experienced a single signal drop or other issue. All is working perfectly! I also have the flexibility to move my laptop to any room where i have a Coax connection and just plug in to get the same speeds. Very nice!

2 PACK - DIRECTV Broadband DECA Ethernet to Coax Adapter - Third Generation (with 2 AC Power Supplies): I had been seeking a way to bring ethernet to a corner of the house where wifi just does not reach in order to connect my TV, BlueRay player and Fire TV. Running cable was out of the question due to a gas fireplace and several other obstacles preventing a clean run. I tried using a wifi extender but it dropped the connection constantly. I then tried an ethernet powerline kit but due to several issues this too resulted in an unstable connection.An existing coax line was the only "port" running down to the garage where all the other cables lead. Took a shot and ordered this DECA kit and bam ... a solid, stable ethernet connection was created and using a small 5-port ethernet switch I now have all my devices connecting to my home network and the interwebz.Installation is simple: placed one unit in the garage and connected it to my existing home network via an existing switch. Attached the coax line to the unit then plugged in the power supply. At the other end of the coax (upstairs), I connected the coax from the wall to the second unit, ran a short ethernet cable from the unit to a small 5-port switch (the TV, Fire TV and BluRay are connected to the switch) then plugged in the power supply. Within a minute or so the indicator light went from flashing to solid indicating an established link - I now had a 100 mb connection where needed. If you check your router settings you will find the units each connect via DHCP and grab an IP address. That's fine ... it's just how they work just know you'll have a new item for each unit connected.This setup has been running steady with absolutely no issues now for approximately 8 months.Recently, I noticed a peculiar thing: the transmitting unit in the garage with the DHCP name of "che" (assigned by the unit) regularly initiates downloads from IP addresses originating in China. Using an OUI Lookup on the web I was able to confirm the activity was originating from the device. Initially I assumed this was to grab a new firmware or something but when I examined the amount of data I was astonished. Some days the unit would download up to 1 gig and routinely showed approximately 300-500 mb in daily activity. I began thinking this was simply the connections to Netflix, Amazon Video etc however there was activity on days I was not even home.I then blocked the devices from being able to access the network using the router settings and found I was still able to use my internet connected devices with no issues. Searches on the web show this is often caused by the device downloading a new firmware but failing so ... it keeps downloading the firmware over and over and over again. Nothing nefarious going on it's just bad code.Overall, the units work as intended - they bring a 100mb ethernet connection to you via coax. If you need speeds greater than 100 you'll want to use MOCA adapters rather than DECA but for general online video, etc these work just fine and I would again use the same solution should I be in a similar situation elsewhere.Marking as 4 stars rather than 5 due to the download issue. Recommendation: set them up, verify connectivity, then block internet access via your router. For me this worked just fine.