UCTRONICSFront Removable 1U Rack Mount for Raspberry Pi, with 4 Mounting Brackets for Raspberry Pi 5, 4B, 3B+/3B, and Other B Models

Overall great product. I'm writing the review I needed to see before purchasing this. Fits non-HAT pis great.I got this product knowing that the GeeekPi P33 M.2 NVME M-Key PoE+ Hat rpi5 I'm have was going be close fit. There are multiple fit issues: that header pins, a capacitor, and what I assume is the transformer on the GeeekPi HAT are too tall to clear the top of the rack mount holder. They will also extend slightly above the 1U height. The screw down retaining clip of the NVMe and a capacitor both stick out too far to the front preventing the pi from screwing down into the holder.I already had all the parts and decided to "make it fit." See the attached photos. I still have the problem of it sticking up above the 1U space allocated for the rack mount, but I'm just going to have to get creative with it's placement in the rack where it has some headroom.Learn from my hubris. Don't try this with this brand of NVME/PoE HAT. But if you try it anyway, see photos on how to make it work.

I recently outgrew a GeeekPi 6-Layers Raspberry Pi Cluster Case which served me well for a few years. After doing a little research I chose this design for its accessibility and modularity. It is very easy to mount your pi boards and connect your front-facing USB and ethernet cables; a little tedious connecting power and micro-hdmi but it's possible.At the same time I have been outfitting some new Pi 5s with Samsung NVMe 980s using the base from Pimoroni (also well designed and released before the official Raspberry NVMe base). Unfortunately with the Pimoroni mounted below the raspberry, the ethernet and top 2 USBs are no longer accessible. Because I hate waste, I am probably going to dremel out a bit of the harness, but thought this might help people and maybe UCTRONICS can design a model that will work with the NVMe bases.Update: here's a picture showing where I dremeled out a small portion of the housing face to gain access to the front ethernet port. Bottom row has my Pi 5s with NVMe base and top row has Pi 4s without.

This is a great product; I would strongly recommend you ground it to your rack and whatever the rack is grounded to. I've been able to front a small 1U shelf with this and keep my Raspberry Pis elevated for improved airflow. I can also cable manage the front of the mount/rack to keep everything organized.

I you are going to mount 4 Raspberry Pi devices in a 1U space, this case is almost perfect. The problem starts when you add a combo POE + NVME hat. This avoids the problems of additional power cables and power supplies, relying on Micro-SD cards for storage, and the power and cabling challenges of external USB storage. You can certainly configure a Raspberry Pi with a standalone power supply and external USB storage, but would you really want 4 of them configured this way in a rack case? I think not.A typical POE + NVME configuration is stacked a few millimeters too tall to fit, requiring some creativity to make it work. All they would really have to do is shorten the posts on the bottom of the trays. These are threaded posts, so you can't just Dremel them down to size. And of course it would really help if someone made a low-profile POE + NVME hat.With some creativity to get past the vertical space problem, this case allows me to run a Raspberry Pi Kubernetes cluster, for experimental purposes. It would be a 5-star case if only it wasn't such a hassle to get a well-equipped Raspberry Pi to fit.

This is a quality product! It is made out of a thick sheet of steel, so there is no flexing or bowing. The parts are accurately cut and bent, there is no excess slack or wobble. Everything fits together nicely. And lastly, the paint, or power coat, is done nicely, a nice thick coat with no scratches, or defects.The people who made this took pride in their product. This isn't just some cheaply made sheet metal thing. This is a well manufactured and engineered product.

Been looking for something like this for quite sometime

Now that USB3 and PCIe is a thing, this is redundant, and I have replaced it with the 5x with SSD mount variant for denser clustering. This 4x variant is really only suitable for the Raspberry Pi 3B, not the 4's or 5's.

If you are after a simple, no frills 19" rack to mount your Raspberry Pi's this is it. Each Pi is mounted on a frame for individual removal and insertion. The rack is not enclosed at the back so open to dust etc (no problem for me). Solid build quality too. I could complain about the price but let's face it, a cheap Pi rack is a thing of pure fiction.