TP-Link TL-PoE10R, 802.3af Compliant Gigabit PoE Splitter, 5/9/12V DC Power Output, Up to 100 Meters (325ft.), Power Adapter & Cable Included

Compact, good looking units, working well for me! At first I ordered the individual units (injector & splitter) but then noticed they are available as a "kit" for less money, doh! I then ordered the kit too thinking I would return the individual pieces. However, on the kit (POE injector+splitter) the units are white plastic, are 10/100 only and non 802.3af compliant. The POE injector and splitter when ordered separately are black plastic, are gigabit and 802.3af compliant. Seems very odd. POE injector comes with the 48v adapter. I ended up keeping all of them.I needed to connect 2 building that are 150 meters apart with a CAT5e ethernet cable. The maximum cable length for ethernet is 100 meters. So I needed to divide the 150m into 50m and 100m sections then add a switch at the 50m mark. However there is no AC power anywhere between those two buildings. I used this TP-LINK PoE injector & splitter kit with the PoE injector placed at the beginning of the cable, the splitter (which acts like a switch) placed at the 50 meter mark powered from the PoE injector and the ethernet cable continues on for the last 100m. I don't use the 5/9/12V output for anything. I used the white units from the "kit", everything is working very well. Saved the black gigabit units for spares, might upgrade to the gigabit ones if client needs more network speed.

I like to keep our entire network up and running when there's a power outage. I have one network hub off on its own in the basement. Instead of attaching this hub to it's own battery backup I decided to use a POE injector at the modem and router so they could all share the existing battery backup. This was my first time using POE, so I wanted to stick with IEEE 802.3af compliant POE devices to keep it simple. It was easy to set up and has worked flawlessly.The only slightly tricky aspect was I needed to buy an adapter to get the correct barrel size for the power connector, but luckily the one I needed was one of the Amazon suggested items.I do like that it allows for different power settings.

This TP-Link PoE Splitter pairs well with this adapter: http://amzn.to/2r1WZoV. This combination is great for powering Raspberry Pi or Pine64 boards. I used it with this PoE+ Fanless Switch: http://amzn.to/2qDtOYo. The trio make a great combination for a lab where someone wants to avoid having to play guessing games if the micro-PCs are getting the power they need. This splitter is cheaper than many others but has a maximum output of 15.4w (suggested is <10w). Stock Rpi 3 uses about 2300mw and I was able to boot with this device getting 5000mw from the PoE switch (I could probably tune it down more, but have not tried yet). I love that the device has a selector switch for multiple different voltages. The barrel adapter out is a common standard, so you can find many adapters for different devices if you need to power something different.

Positive: It's a dead simple and easy to use product and does EXACTLY what it says and is advertised to do.Cons: None. If you know what you're buying and you know what you're doing then you won't have a problem.A PoE injector does exactly what is says. It INJECTS voltage into a RJ-45 cable to combine your data source with voltage which, in turn, will allow you to power a PoE device such as a wireless AP or PoE camera at the other end of the RJ-45 without the need for a power source for that device whereever the cable terminates.A PoE SPLITTER on the other hand does the OPPSITE! Of course it doesn't come with a power supply in the box like one of the reviewers left a negative review for. WHY WOULD A PoE SPLITTER COME WITH A POWER SUPPLY IN THE BOX!? My god man! You use this device for splitting the data and power that is already in your PoE injected data line. You can then run the power into a device that isn't PoE powered and the data into whatever you need the data for. An example of this would be APs that are not PoE powered. You don't have a 120V outlet where you want the AP, but you have a PoE powered data line. You place a PoE spitter there and run the data into the AP and use the dc barrel of the split voltage to power the same AP. Job done.I use these PoE splitters not for the data part, but to split out the DC power to be used to power some 12V 1A IR Flood lights to assist the PoE cameras at the same location that are using other PoE data lines. There's no 120V power there, but these splitters allow me to power the IR flood lights with the data lines that were already run in the past. Just have the lines plugged into a PoE switch wihtout data at the other end.

Works as advertised. Beware though, the power patch cable supplied with the unit did not fit my ARRIS SURFboard SB6190 DOCSIS 3.0 Cable Modem. Before ordering the unit I was wondering how they handled the multi-voltage connector issue since DC power plugs are usually keyed for specific voltage/current requirements via the shape and dimensions of the units jack so as prevent someone from connecting the wrong power source or for proprietary reasons. I had to put together my own power patch cable. It looks to me that the supplied power patch cable has 5.5 mm OD x 2.1 mm ID plugs