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MINISFORUM DeskMini UM870 Slim Mini PC AMD Ryzen 7 8745H Small PC, 16GB DDR5 RAM+1TB PCIe4.0 SSD, HDMI/DP/USB4 Outputs, 2.5G LAN, WiFi 6E, BT5, 4xUSB Port AMD Radeon 680M Graphics Small Form Factor

  • Based on 85 reviews
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Availability: 18 left in stock
Fulfilled by Amazon

Arrives Thursday, Mar 12
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Style: UM870 Slim(16+1T)


Features

  • Ryzen 7 8745H ProcessorThe UM870 Slim Mini PC comes with AMD Ryzen 7 8745H(8C/16T up to 4.9Ghz) processor. The faster performance can handle heavy computing tasks smoothly and better for multitasking. It widely used for light games, image editing, browsing, watching movies, programming etc.
  • Strong GraphicsThe UM870 Slim Micro Computer equipped with AMD Radeon 780M Graphics which built on the new generation of RDNA 3 architecture AMD graphics , it is designed for the next generation of efficient high-performance gaming and brings ultra-high frame rate experiences and advanced content creation features anywhere and delivers staggering performance beyond your imagination.
  • 8K Display OutputThis Personal Mini PC equipped with three video output, 8K@60Hz display output via HDMI 2.1 and USB4 Port, 4K@60Hz display via DisplayPort, you could connect three independent displays, which ensures smooth navigation, responsive work processes and comfortable handling of apps and files and expands multiple work-spaces for more efficient and comfortable productivity.
  • Stable Network TransmissionUM870 Slim mini desktop computer with 2.5G RJ45 ethernet port, outputting stable and strong network signal, with WiFi6E and BT5.2, it can significantly reduce the host's CPU load. Improve network performance and reduce network delays. So you can enjoy smooth and fast network transmission.
  • Expandable Storage: 2x DDR5 SODIMM slot, each of slot can be upgraded to 48GB + 1x PCIe4.0 SSD Slot(up to 2TB). There is another PCIe4.0 SSD Slot available can up to 2TB. Without worrying about lack of capacity, you can run software smoothly, watch and storage large-scale movies, photos without any stress. You can also enjoy some games to some extent.
  • Versatile ConnectivityThis Mini PC comes with 1x HDMI2.1 Port, 1x USB4 Port, 1x DP1.4 Port, 2x USB3.2 Port, 2x USB2.0 Port, 1x 2.5G Lan Port, 1x 3.5mm audio jack, 2x DDR5 SODIMM Slot, 1x M.2 2280 PCIe4.0 SSD Slot, which offers extensive connectivity options for various peripherals and external devices.
  • Package Content:1x UM870 Slim Mini PC, 1x HDMI cable, 1x US Power Adapter, 1x Manual.

Brand: MINISFORUM


Operating System: OS


CPU Model: Ryzen 7


CPU Speed: 3.8 GHz


Graphics Card Description: Integrated


Graphics Coprocessor: AMD Radeon 780M(Graphics Frequency 2700MHz)


Memory Storage Capacity: 16 GB


Specific Uses For Product: Home Theater, Digital Signage, Video Conference, Business, Education, Everyday Use, Multimedia


Personal computer design type: Mini PC


Ram Memory Installed Size: 16 GB


Screen Resolution: ‎3840 x 2160


Max Screen Resolution: ‎3840x2160 Pixels


Processor: ‎3.8 GHz ryzen_7


RAM: ‎16 GB DDR5


Memory Speed: ‎5600 MHz


Hard Drive: ‎1 TB SSD


Graphics Coprocessor: ‎AMD Radeon 780M(Graphics Frequency 2700MHz)


Chipset Brand: ‎AMD


Card Description: ‎Integrated


Wireless Type: ‎802.11ax


Number of USB 2.0 Ports: ‎2


Number of USB 3.0 Ports: ‎2


Brand: ‎MINISFORUM


Series: ‎DeskMini


Item model number: ‎DeskMini


Hardware Platform: ‎PC


Operating System: ‎OS


Item Weight: ‎3.41 pounds


Package Dimensions: ‎7.2 x 6.42 x 4.49 inches


Color: ‎Silver


Processor Brand: ‎AMD


Number of Processors: ‎8


Computer Memory Type: ‎DDR5 SDRAM


Hard Drive Interface: ‎PCIE x 4


Hard Drive Rotational Speed: ‎5600


Date First Available: October 28, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Fantastic Mini-PC and Excellent Customer and Technical Support - What's Not to Like...
Style: UM870Slim(32+1T)
Update 7/4/2021 TPM 2.0 - is a new requirement for Win11 when it's released this fall. Minisforums engineering released a new BIOS/EUFI update that enables TPM. I am running the developers Win11 release and no compatibility problems have surfaced at all. So this HM50 is Win11 ready... ........................original post............................ Plenty of reviews out there on bloggers sites and on YouTube that provide technical details and stress testing the AMD Ryzen 5 4500U CPU and the AMD GPU. It scores very well in all the tests and is certainly no laggard by any means. It is still used in new name-brand laptops today so it's not outdated at all and runs like a scared cat. I've done my own non-scientific torture tests that go well beyond what I expected from this mini. I have three 24" 1080P monitors connected and brought up 3 different 1080P streaming videos - one on each monitor - all running at the same time. I had Netflix, Amazon Prime and YouTube video's all running and then looked at the Task Manger Performance tab and this mini was not even breaking a sweat. CPU at 17%, Memory at 4.8GB/15.4 (31%), GPU at only 7%. While all those were running, I brought up Lightroom 6 and started editing a photo as well Photoshop and the GPU usage went to 10%, CPU to 20% and Memory 5.5/15.4GB (36%). I then opened a word document in Libre Office, started a couple of app's (email and newsgroups ) and could not see any difference in the numbers. Still way below what one would consider high usage for any resource. I also tested both Ethernet ports (1GB and 2.5GB) as well as the wireless systems and they all work. I have 300MB/300MB service and the WiFi worked at spec. Not a single glitch... Certainly way more stuff going on than I would ever have normally running but... I'm also evaluating it as a replacement media / signage controller for a clients business with multiple monitors. This mini is now my daily driver and It has replaced a workstation I have that has dual graphics cards, 32GB of memory and 9 hard drives - all which made it an excellent room heater. With all the fans and hard drives spinning - it made some noise as you can imagine. I seriously doubt I will never need more power or capabilities than what this HM50 provides. I have 3 USB (4TB, 8TB and 10TB) drives connected to it and they remain fast even when copying files to all 3 at the same time. I installed two 500GB internal SATA SSD's (Samsung 860 EVO and a Corsair) for dual booting between versions of Win10 & Win11 and for running a Linux VM - just for playing around with. Not a single problem with any of the applications or any hardware compatibility issues - none. I have been in the computer / communications fields my entire career having used, programmed, built and maintained many different type systems from world-class size to now - Mini PC's. In my opinion, the most important part of any system is not the just the hardware or the software, it is the Customer Service and Technical Support that the company provides and how they stand behind their products. Yep, I tested both of those before purchasing the HM50 and I can say they are some of the best I have ever dealt with in all my years in this industry. I can't speak to reliability but they provide a 1 year warranty with a 6 month extension when you register. So 18 months warranty in total - I don't know of another manufacturer that provides that length of warranty unless you purchase it via a separate contract. Unlike some other mini manufactures I recently had to deal with for 5 months, I received prompt, courteous and accurate responses to my questions from Minisforum Customer Support (Nora) and Joey in Technical Support. Response time was a matter of a couple of hours and not days or a week or two later as with the other manufacturer. When I was looking for a replacement pc, a mini made a lot of sense for me. Big savings in power consumption. I cannot hear the fan even when the system is under a stress load and it does not take up a lot of space on my desk. It far exceeds my expectations. I have a home lab with about 10 other systems (full size PC's, laptop's and tablets) that I still use as test beds and just messing around with as part of my computer hobby. Now I do all my photo editing, writing and media watching on this HM50 and not lacking for anything. Remember that there are chip shortages now - and will be for a year or more which has driven costs up and that support is also part of the cost of any product. In time, Windows or some other applications or piece of equipment attached to it is going to create a problem and you may need some tech support in the future. I know that both the before and after -sale support was a positive 5 star experience for me and I expect it to be the same down the road. Lot's of choices out there to look at and I did a lot of research to make sure this would fit my needs now and still have plenty of power and resources for the future. It came with 16GB of Kingston memory and Kinston 512GB NVMe SSD for storage and can be upgraded if needed. It's plenty powerful and it just works.... ... show more
Reviewed in the United States on July 5, 2021 by Bob S

  • Seems to be alright for the price. Started out with an issue that was quickly resolved.
Style: 795S7(32+1T)
I may have reacted too soon. The problem may have been the Amazon TCL tv i had it plugged into. We'll see. It did start off where the power button had to be attached to the motherboard. I recently had to reset the system to factory because I couldn't get any display trying to wake it up from sleep. However, I did get the options to choose to start windows or reset or go into BIOS. After resetting still nothing. Unplugged from the TCL TV and into a graphics monitor and things worked. It seems like a decent machine for the price I just hope the snags are done. Customer service and communication has been good. ... show more
Reviewed in the United States on July 6, 2025 by Nathan

  • Great cooling, quiet, and powerful
Style: UM870Slim(0+0)
I bought this to replace my 9th gen CPU laptop with GTX1060 MaxQ GPU. Because I bought the barebone model, I purchased 32GB Crucial DDR5 RAM and Hynix 1tb Platinum SSD. I cannot be happier because this mini PC satisfies all my needs and expectations. * Game Performance: One thing that was not clear to me was how well 780M would work with a game I sometimes play, World of Tanks. Comparing to 1060 MaxQ, 780M works better. Not sure about other games because that's the only one I play. * Cooling and noise level: These are beyond my expectations. It barely makes any sound even when I play the game. It gets warm on one side of the top after the game play. But, it cools down quickly and stays cool. In other uses, I didn't notice any heat-up. * Things to consider: When you need to install the OS by yourself, you may experience some issues. The wifi was not detected by Windows 11. I could not locate the correct drivers even after downloading them from Minisforum. And I could not locate any documents or manuals that are helpful. So, I used the trial version of Driver Easy to install all drivers. It solved all problems. (I believe other driver installation programs will work fine.) * One more: When you want to install or upgrade the SSD or RAM, you need to open the mini PC. The bottom legs are stickers. You can detach them carefully from the corner to the middle (bc that's where the bolts are and least sticky part). The rest is easy. Before my PC is arrived, Minisforum announced a higher version: UM890. It seems attractive because it has the Oculink connection that can be used for eGPU. In my opinion, if you are serious about using eGPU, you'd better consider a desktop. This miniPC is perfect for me for everyday use & work and some games. ... show more
Reviewed in the United States on December 12, 2024 by Simon MOON

  • Works great!
Style: UM690L Slim(32+1T)
Bought it as a gift to give to my brother, he likes it and uses it with no issues at all.
Reviewed in the United States on June 11, 2025 by James

  • No Customer Service Whatsoever.
Style: 795S7(32+1T)
Unfortunately the customer service will ignore you and completely try to ghost you after they have your money. It’s well known that Minisforum isn’t good with their customers buyer beware. My pc’s front and back audio jacks started buzzing bad after only a few months, I reached out to Minisforum but they completely ignored me. 1000 bucks down the drain. Don’t give them your money! ... show more
Reviewed in the United States on April 10, 2025 by Ant Ant

  • Great Device for the Price with an Amazing Customer Support
Style: UM870Slim(0+0)
I’ve been using this minicomputer for a few months now, and overall, I’m really impressed. The compact size combined with strong performance makes it perfect for both work and daily use. It also offers excellent value for the price. After about 3 months, I ran into a BIOS issue, but I have to highlight how amazing the customer support was. I reached out, sent in the faulty unit, and within just 3 days, a brand-new replacement arrived at my door. That level of service really exceeded my expectations. Highly recommended! ... show more
Reviewed in the United States on April 24, 2025 by Amazon Customer

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