Passive PoE Injector and Splitter Power Over Ethernet Kit with 5.5x2.1 mm DC Plug for IP Security Camera- 2 Pairs

I really recommend this product.I think this comment will help many buyers because before I bought it I didn't have an answer to these questions.First of all, I should mention the quality, the plastic and the cable are quite high quality. It came packed in a special factory bag.I needed this product to power the IP camera.There is a 20% copper internet cable in the wall, which made me afraid of how much power it could carry. This product worked great.In my case, the power source is 12 volts 1 amp.With this method, both audio and lighting worked on the camera.

These work great, just what I needed. Its much easier working with these than trying to figure out which PoE standard my cheap Chinese IP "PoE" cameras use... I wish the RJ45 end was a tad bit smaller so I didnt have to terminate and connect the camera in the attic but thats not any kind of defect on the company's side. These are cheap (cost) and so far work fantastic. I understand all of the math and logic behind attenuation with these, but same goes for the 802. PoE standard.. this is just a lot smaller and easier to tuck away in my server rack than having a PoE brick and power supply. Also the build quality on these are very nice and solid. I see them lasting forever.

Had to use in two instances. PoE switch connecting to a camera that had both network and power cable and to a camera that needed extra power on a non PoE switch. both worked well. Thought cables were a bit short.

What I needed to hardwire my camera to the recorder

I wanted something (T10/100 2 pair) that would carry voltage (normal passive on non data lines) between router and other end without fear of voltage on otherwise unused pins. In my case I was down converting 12v to 5 volt and running up to split back out into a ring base, so unsure what stray 5 volts might do on non data lines … well this was 100% bullet proof (plug in or out only have 4 of 8 wires) No not gigabyte compatible but if your device will accept 100 negotiation you won’t mess expensive things up assuming (just not there so safe)Single wire ring base remotely installed, no 110v nearby needed. Runs for months on battery backup (if ever needed) so a win-win (batteries not included. Size matters ;-)

By the time I got to use them I found out that they did not work at all.Test them right away. Their QC is not very good. With that said I hope you don't get a fire.

These are fine as quality and function are concerned but something to consider can be problematic, that is using these to send low voltage power over longer cable runs, over fifty feet or so, might not work due to the voltage drop in the very small gauge wires used in many ethernet cables. I tried to power up a 5 port switch at the end of a 100 ft cable and the voltage at the business end had been dropped from 5 to about 2.9, needless to say, not sufficient to operate the device. I think about 20 feet with a good quality CAT5+ cable is about as much as you can expect to bedependably functional. If I have some time I will do some decent measurements and post the results.

Tested OK with multimeter when connected to a PoE switch (was only using 1 side). I have not used in production yet but for a passive device/connector I expect it to work well for indoor use.

Worked fine to bypass POE power around a non POE switch.

I bought this only for the PoE injector, but there was none when it arrived. I had to return it.