MINISFORUM UM870 Slim Mini PC AMD Ryzen 7 8745H(8C/16T), Mini Desktop Computer 32GB DDR5 RAM 1TB SSD, USB4/HDMI/DP 8K@60Hz Output, 2.5G LAN Port, 4xUSB Ports, WiFi 6E, BT5.3, AMD Radeon 780M Graphics

Powerful Compute in an Efficient Package – Proxmox Cluster Node
I’ve always been one to buy decommissioned enterprise gear for my homelab but I had a need to add an additional Proxmox cluster node in the house, around people, so I wanted something more human friendly. Looking over all the options, MINISFORUM seemed to offer a wide range of combinations of technology and the most difficult decision was which processor/ram/architecture I wanted. I ended up choosing the NAB9 w/ Core i9-12900HK specifically for the Cores/Threads and clock it ran at with 32gb of RAM. This should be plenty to play host to infrastructure VMs to maintain HA. I am using the 2.5gb LAN ports as one for the VM network and one for the Storage network. With how fast it is, you can’t even tell that the VM’s disks are in another building on a NAS when it serves a site from the VM on the NAB9. It boots very quickly and is completely silent and it doesn’t seem to generate much heat, if any. In my case, I unboxed it, plugged in the KVM and network, connected my Proxmox USB Bootable installer, and went from new to cluster member in under 30 minutes making it very easy to use! I do have to bring up one small issue. A few weeks after I had it up and running it suddenly turned off and wouldn’t turn back on. I know this sounds bad but it’s actually a testament to how supportive MINISFORUM is. I opened a support ticket and had an email response within hours, not days! We performed the troubleshooting steps and emailed back and forth that next day before I was given the greenlight for a repair. The speed of their service and support was way beyond my expectations! I sent in the NAB9 and counting travel to there, from there, and fixing it, was 5 days. Under 1 week and I had the machine back and up and running! Since the repair I wanted to wait a bit to make certain everything stayed good before I left my review. But now it’s time. I’ve had the NAB9 running 24×7 since I got it back several months ago and it’s been amazing. So much so, that I forget I have it running in the house. I haven’t had to do any fiddling or anything. It’s great and just works. I feel that I can confidently say now that it’s high quality and an excellent value for how much compute you get for the price. Thank you MINISFORUM, this device has filled a specific need for me perfectly.

Very capable tiny PC.
I’d rate it a 4.5 stars only because this is a tiny PC that can do most tasks you want and even some light gaming. This is a secondary PC for the main room to play light steam games. NVME is about 5400MBs and 4000MBs read write speeds. You can put a Gen4 NVME Predator drive and see full speed of 7500+MBs and 5000MBs read write. It does come with an adapter for the second slot for a SATA 3.5″ SSD if you wish, but you can’t have 2x NVME and SSD. USB3.2 is supported. I have a 512GB thumb drive with 1000MBs and it’s pretty close to that speed. It only has two USB2.0 ports so if you have a wireless keyboard or mouse, you’ll be struggling for other devices.It only has one USB-C 4.0, but it is a godsend for being able to use one cable for powering up my monitor and sending data to the monitor’s USB 3.0 port. I have it to a hub which lets me have a thumbprint reader for logging in, an SD card reader for my cameras, and a half size gaming keyboard. Before I had to have a separate power cord to the monitor and an HDMI cable. Now I can power it alone by the one USB4 cable and even when turned off, it supplies power to the monitor to let me use my nVidia Shield for TV watching with the HDMI.It will be able to do RAW photo edits in PS, LR, or DxO Photo Lab. There isn’t Ai exceleration for DxO or Topaz Sharpening since it’s an AMD GPU and nVidia owns that area. I tested out Path of Exile and while it did start on 4K resolution and low frame rate, I dropped it to 1080p@60 with everything turned on and it never dropped below 60fps until I got into a town. The stuttering probably happened with loading on new NPCs and town assets. It also ran Trials of Mana (3D JPRG) with 60fps mostly. I don’t have an eGPU yet, but if you want more power, you have that option.The only reason why I didn’t give it a full 5-star is because the power brick that comes with it, it shorted out and fried the PC. I had dropped a controller on it and it must have jolted something sent a spike to the PC. The brick stopped working and other bricks I had wouldn’t power the PC on. I bought it in June and knew I was outside the window of return. MinisForum doesn’t make it easy to contact them, but I had stated my grievance on Reddit and emailed Support. A MinisForum rep messaged me on Reddit within a few hours to talk about getting an RMA and replacement after an evaluation. It did require me to pack everything back up including the RAM and original NVME, cables and such. Luckily, I had kept the box and was able to send it back, which they paid for shipping to them and to me for the replacement. The new PC is up again, but I’d recommend firing it up and updating Win11 before putting in another drive. I kept running into boot errors, but eventually did get it up and running.

Great product, unfortunate about the choice of the Mediatek WiFi card that’s not supported on Linux. I had to get a USB WiFi adaptor to have a functional WiFi