
I had a fan failure on one of these devices and uctronics immediately sent a replacement device. Just thought it might be helpful for anyone interested in their warranty policy. Friendly people Not leaving any feedback on them, I am very happy with the PoE device itself. I'd say my only complaint is that the screws holding the boards together are a bit difficult to tighten, but it's by no means a deal killer. I like the size of these devices. TIP: If the fans are too loud for you, you can install a lower speed external fan (I used a spare fan I had) and point it towards the Pis. Apparently it doesn't take much airflow to keep them in the temperature range that keeps the fans from turning on.

GeeekPi Raspberry Pi Cluster Case with Cooling Fan and Heatsink for Pi 4 Model B, 3 Model B+ & 3/2 Model B
11 Review

Vilros Raspberry Pi 4 4GB Complete Starter Kit - Black Fan-Cooled Aluminum Case for Heavy-Duty Performance
12 Review

LAFVIN Super Starter Kit for Arduino R3 Mega2560 Mega328 Nano with Detailed Tutorial - Compatible with Arduino IDE
11 Review

REXQualis Comprehensive Starter Kit with Arduino MEGA 2560 & Detailed Tutorial for Arduino IDE Compatibility
11 Review

π₯οΈ Helifouner 450-Piece Computer Standoffs Spacer Screws Kit: Ideal for Hard Drive, Motherboard, Fan, Power Graphics & Computer Cases
10 Review

Glarks 660 Pieces Phillips Assortment Motherboard
10 Review

uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review

36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review