4-Pair Gigabit PoE Injectors Splitter Kits- Passive PoE Adapters (5-48V), up to 825ft Range, Ideal for Non-PoE IP Security Cameras & More

I have a PoE router for my IP cameras , so I haven't used the injectors yet, but the PoE splitters work great. All my newer cameras are PoE capable, but there are a few legacy cameras which were sidelined and replaced with PoE capable units. With these splitters, you can extend the service of non-PoE cameras and add them back on to your PoE network. The first splitter units I purchased were bulky boxes which required mounting near the camera. These units are minituarized, plug and play adapters which snap into place and stay out of the way- very nice.

When dealing with ethernet based devices, such as some security cameras, it can often be easier to supply power from where you connect the ethernet cable, than from the other end. Think the security camera mounted high on the wall - there is no electrical outlet near the camera, but back where the ethernet switch is plugged in, there is.Well, these devices allow you to send the power out over the ethernet cable (PoE) rather than having to run a new electrical line. The power adapter for your device plugs in at the source end, and a corresponding splitter splits the power back out at the other end, so the device doesn't know it's not plugged in directly!These won't work if the device you are trying to power has a different sized barrel connector for power (or uses micro-usb/usb-c for power), but for many situations, these fit the bill perfectly, and make for one less wire you have to run. Well worth considering.

So while I believe this can transmit both ethernet and power, I want to make it clear that in this review I have only used it to transmit DC (24V/1A) power. I have a giant spool of ethernet cable that I got for cheap. And I need to run 24V power to several security cameras. The cameras don't need ethernet -- they are all wireless. So I just needed a good way to send 24V low power to them. Yes, I could have used just regular wire. But ethernet is super inexpensive, and I already had a ton of it. So these little adapters work perfectly. I just plug 24V (or whatever) into one end, and I get that back out the other end). Obviously ethernet wires are thin (mine are 26 AWG), so I can't put much current in them. And this setup does not have all the inherent protections of a true active POE+ power delivery method. But for my simple setup, it works great. The only downside is these are not outdoor sealed. So I had to device a little box to keep them dry.

I have a Deco M5 mesh Wifi system and I was looking for a way to position my AP up high in my ceiling without having to run power. This is the older model before they went to USB C. This injector works perfectly with these APs. I couldn't be happier. Just plug in the appropriate ends, put your CAT5/6 cable in the middle and you are in business. No adapter needed. It's the right size connectors already.