LoveRPiPower-Over-Ethernet (PoE) HAT for Raspberry Pi 4 Model B and Raspberry Pi 3 Model B+ (Professional, Isolated (3KV))

A couple of things I'd like to mention before going into my opinions of this PoE hat: I've used PoE hats as well as PoE-to-micro-USB power adapters for the past four or five years to power various RasPis. PoE is something I've worked with since about 2003 or so in a wide variety of implementations and environments, so I feel that I have a reasonably decent grip on the subject. With that out of the way:This is hands-down the best PoE hat I've bought for the RasPi. That's not a knock on ones I've used previously by any means - but this one really is just that good at what it does.Granted, at this time it can only be used with the 3B+ and 4B - but that's OK. It means that these units are likely to have a decent usable lifespan, so the cost of the hardware should be able to be spread out over a decently-long period.Get the electrically-isolated version. Even if you're powering this from a switch or PoE injector that's hanging off of a UPS, there's no telling what could happen if either of those upstream devices fail. For the extra $5, it's cheap insurance against frying your RasPi.Once attached to the RasPi, the hat is extremely low-profile. However, there are components on it that stick up (slightly) above the height of the RasPi's Ethernet and USB ports. It does impact airflow and heat escape from the RasPi mainboard, so a fan (sold separately) is pretty much mandatory if you're going to use it with a RasPi that sits in a case or enclosure, and is recommended just for the sake of being safe.It does use the +5V and GND GPIO pins typically used to power a fan. However, there is a separate 8-pin connector on the PoE hat that makes these available. One big advantage to this approach: the 8-pin connector is parallel to the RasPi's mainboard, so fan power connectors can be attached to it without taking up any additional vertical space.One thing to be aware of: the hat only accepts 802.3af or 802.3at PoE input. If your switch, injector, etc. only supports passive PoE, this hat is not what you want to buy.Overall, I'm very impressed: this is an adapter that has been well thought-out and Just Works. Highly recommended (again, get the isolated version!) if your hardware supports it.

Initially bought two of these to test out. I am very pleased with the ease of install and it still fits in the existing case of my Pi 4B. I just left the top open, for better air flow. I will be buying a couple more for other projects. This is at a great price point and eliminates having multiple power supplies.Just wanted to update that everything still works great 👍 I do want to add that I installed fans which keeps the temperature eight around 45-48 degrees Celsius. Without the fan I saw temperatures between 65-75 Celsius. So I would definitely recommend using a fan if you plan on using this PoE HAT

These work great but run pretty hot. Make sure to use an enclosure with a fan. These sit down on the Rpi with a relief for the 40 pin connecter and leaves enough room, I think, to put a fan on top. I chose not to do that for space reasons.

Great PoE hat. It's very cleverly designed to take up as little room as possible. It actually hugs the motherboard quite closely which allows for a fan to fit very snugly just above it. Because of this lack of margin for error, case selection can be a pain. I went with the Pi Tower because I want to add a few more to the mix over time. This combination works. So if you think you might be summoning a raspberry pi army any time soon, consider going this route.The PoE hat works well and is very convenient. The one issue I have with it is for some reason I haven't quite figured out yet, the moment I plug it in, it kicks any passive PoE devices I have plugged in offline. My switch is a Ubiquiti UniFi Switch 24 POE-250W. The Pi is only using 6.5W (PoE+) and the only other PoE device is a Ubiquiti access point that requires passive PoE. I put a PoE injector on the AP and now it's fine. But I still wonder what's going on with the Pi that's messing with passive PoE. Just something to take note of in case this situation might apply to you.[Edit: Ubiquiti switch owners must get the Pro version with the ground-loop isolation circuit to compensate for the switches not including one.]

Ordered a couple of these for some Pis I have for home lab stuff and works well and I think they are better than the OEM Pi hats.

Bought 8 for a rackmount cluster, all 8 worked and are still working months later. The attachment is a bit janky, it's just 4 captive pins but it seems to be good enough for my static install. If it's in a location that moves around I would be a little more concerned. But, it does the job, which was running 8 RPI 4+ models off of a POE switch, the ubiquiti enterprise 8. Remote power monitoring from the switch works great and allows remote power-on/off for orchestration stuff. Adds the functionality the RPI always should've had :(