Review on ⚡ TRENDnet TPE-113GI Gigabit Power Over Ethernet Injector: High-Speed, Full Duplex Performance for Network Devices up to 328 ft, 15.4W Power Delivery, Black by Micheal Wolf

These are excellent mid-range gigabit injectors. I paid a bit more for this brand because of the higher operating temperature: 0°C50°C (32°F 122°F). Other brands were cheaper but had lower operating temperatures. Since they gathered in the attic, this was a very important factor. FYI, the "Wall Wart" adapter that powers this module runs horizontally and is slightly larger than a regular wall outlet plug, so you can't put two of these next to each other. If you have another bulky plug and only two outlets left of each other in the AC outlet you are using, you could run into a potential mating issue. Finally, if you look at the product image, you will see that the cable is connected with the connector latch down. Be careful if you mount this module on a wall or board like I did and use a cable with connector protection. Depending on the thickness of the protection, you may have trouble removing this cable once inserted.