UCTRONICS 19” 1U Rack Mount for Raspberry Pi with SSD Mounting Brackets, Thumbscrews Front Removable Bracket Supports Up to 4 Raspberry Pi 5, 3B/3B+, 4B and 4 SSDs, Option SD Card Adapter

This item has been pretty poorly designed requiring you to either need to buy a PoE hat for each pi you wish to use or buy an angled adapter as each pi is too close to the other one to allow a power cable to be inserted without causing significant stress to the power port (usb c or micro depending on the pi)

This works well overall and as intended. I've got Pi 3, 4 and 5's installed along with the latest fans. It's ridiculously overpriced for a few pieces of metal and some screws, but... server kit, so hey ho. The SSH bracket underneath each Pi is too close to work with the official Pi USB->SATA adapter, so 4 stars for that. It feels like the SSH connectors will break trying to force them. Instead I've run the cable to the next host SSD alongside, with the first one in the opposite direction, which does work but confuses the techs and is therefore not ideal. All in all I would recommend this, but boy I wish they were cheaper!

First up, squeezing 5 raspberry Pis on this rack means there is an implicit expectation that you are using PoE HATs. If you want to power them via the power supply input, you may need 90 degree adapters.Some people have complained about it being flimsy, I would call it adequate! It is holding up 5 Pis and 5 SSDs at max! The frame is more than adequate.The little trays come out cleanly.The captive screws are a real nice extra. Don’t have to worry about loosing screws. They are M3 size.The trays cannot accommodate Pi5 with NVMe bases. It will get misaligned with the front part. I dssigned a 3d printable tray that can be used with the frame.Will post pictures later.

The packaging his is shipped in is not sufficient as the box arrived slightly crushed. The 1U panel survived without any damage but 2 of the trays were badly bent. It was reasonably easy to bend them back into shape as the metal is quite flimsy but took a lot of time to make them all look perfect again.For the price I'd expect better.

I've been using this product for the last few months, and I have to say, the quality is quite disappointing. The screws that hold the Pis in place are often loose, making it feel like the spring mechanism is ineffective, and you have to keep adjusting them. My original plan was to gradually add Pis and POE hats over time, but this rack has discouraged me from working on my Pis altogether. I regret spending money on it.The overall build is flimsy, and some of the hats don't fit properly. It sags, which makes it more challenging to work around. Thankfully, I bought rack nuts to improve the situation slightly, but if I had the chance again, I would wait and invest a bit more in a sturdier and better-designed option.Taking Pis out of the slots also requires some effort and wiggling. Additionally, the Uctronics POE hats I thought would be compatible turned out to be a tight fit, and the accompanying fans are too noisy to be usable. I ended up opting for Pi POE hats from the company that manufactures the Pis themselves, as they offer better control over fan speed and overall performance. So, consider this when looking at other Pi racks (proper POE hats have three cables instead of two)