POE Hack for UCTRONICS 1U Pi Rack

Updated modular version here: UPDATED: POE HACK FOR UCTRONICS 1U PI RACK

Recently I have been on a kick to organize my home server rack, to remove some wires I bought a few LoveRPi PoE hats for my Raspberry Pi’s but found that wasn’t really good enough on the look I was going for. Searching around I had found UCTRONICS Ultimate Rack for Raspberry Pi 4, 19″ 1U Rackmount with All IO on One Side, OLED Display, Power Switch, and Cooling Fan on Amazon.com and thought that was just what I was looking for. While looking at the images I could see that it didn’t provide enough room for the PoE hats that I had purchased and found the comments confirming as much. Fortunately this didn’t scare me off because I am used to making modifications to make hardware work for me.

Let’s get the warning out of the way, if you don’t know what you are doing or do not understand the instructions, please do not try this at home. You are dealing with power, power tools and can brick, break or burn down your equipment. This just a blog post of what I have done myself with over 27 years of experience with hardware hacking and I am in no way liable for any modifications that you do to mimmic or copy my actions.

I used the following tools:

  1. Solder
  2. Solder Iron
  3. Desolder bulb or wire if required
  4. Phillips screw driver
  5. Dremel
  6. Multimeter
Default fan location
Relocate the fan to the top
Stock PoE hat
Remove the header cap from the PoE hat to expose the pin clips. It pops off with some even pulling and no tools required.
heat up the solder pads and flick off the pin clips.
Cut off the post hole next to the 4 pin connector, the pin for the riser will not fit with this on.
Put the PoE hat on the Pi and solder the pins in with a small amount. Remove any excess with desolder wire and make sure nothing is jumping the other pins.
Trim the header with the Dremel, should only take about 1mm. I went down until I could see the copper from the pin clips. Clear any debris from the holes.

At this point, make sure as a double check that nothing is jumping the pins together and use a multimeter to confirm.

Put everything back together and test out your new setup.

Put everything together and test her out. Looking good!

If you need a pinout of the Raspberry Pi, you can use this site simple-guide-to-the-rpi-gpio-header-and-pins

Simple modification that takes little effort and is sure to impress in any PoE rack. I would like to change this to just desolder the pins from the pi and solder longer pins up trough both hats but I don’t have any on hand and as you can see this does the trick as needed. I will add photos of the rest of the unit once I have purchased the next two Raspberry Pi 4s.

Update: I will be posting another story with the more proper way to make this modification around April 10th. The plan is to use these 20mm header pins to replace the 8 pins (1-8) on the Raspberry Pi but they aren’t scheduled to be delivered until 4/8. The idea is to remove the 6 pin PoE header cap, keep the header pin clips on, desolder the header raiser from the UCTRONICS hat and clip it down to shorten the female end to the hat directly. Don’t get me wrong, the two Pi 4s, using the above method works just fine and this was designed so we wouldn’t have to buy any extra parts. Since I am ordering two new 8GB Pi’s to fill out the space on the rack mount, I figured we should improve upon the design with a $12 part, this will allow all three pieces to be detached and the Pi will just have 8 longer headers in the back if repurposed.

Update 4/1/2021: The new post of the proper way to make this modification is published at Updated: POE Hack for UCTRONICS 1U Pi Rack

This setup looks so sexy

I am not paid, sponsored by, invested in or even remotely related to the linked sites, products or companies listed in this article. This is a blog post and honest recommendations of sites and/or products that I have used and documented to help everyone in our community.

2 thoughts on “POE Hack for UCTRONICS 1U Pi Rack

  1. This was a great hack, I did not even see your post when I was originally looking at buying this. I contacted the makers and they were going to create a POE version of this, and they have now released it. Just though I would let you know. I just ordered on and should have it in a few days. Same as you got except the POE hat is included.

    1. Thank you for the information almulder, it’s really cool a company actually worked with you to add POE to their rack mount. I wish they would have added more information to the POE specs. I chose the LoveRPi specifically because they provide isolation and voltage protection, ~$400 in a Raspberry Pi setup alone isn’t a cheap investment. Let me know how the new mount works and if you have any issues.

      https://www.uctronics.com/19-server-rack-mounts-for-rpi-jetson-nano/raspberry-pi-4b-rack-mount-19-inch-1u-with-poe-and-oled-screen.html

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