MINISFORUM Mini PC UM870 Slim,AMD Ryzen 7 8745H(8C/16T, Up to 5.0GHz),AMD Radeont 780M Mini Computer,32GB DDR5 RAM & 1TB PCIe 4.0 SSD,Support 8K@60Hz HDMI 2.1/USB4 Output, WIFI6E/BT5.3/Auto Power On
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Extended holiday returns
FREE refund/replacement until Jan 31, 2026 Learn more
FREE refund/replacement until Jan 31, 2026 Learn more
This item's return window has been extended for the holiday season: FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Friday, Nov 21
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Size: UM870 Slim-32/1TB
Features
- Powerful Processor: MINISFORUM UM870 Slim mini pc is equipped with AMD Ryzen 7 8745H,8 cores /12 threads (up to 5.0 GHz), providing excellent multi-tasking capabilities and high performance. Compared to the Ryzen 5 7640HS, the Zen 4 AMD Ryzen 7 8745H has a CPU speed that is 1.79x faster, a faster GPU clock speed, and and TDP less 9W. Overall, the Ryzen 7 8745H outperforms the Ryzen 5 7640HS by a considerable 21%
- DDR5 RAM & PCIe4.0 SSD: Supports dual DDR5 SODIMM RAM and 2M.2 2280 PCIe4.0 SSD slots, supporting up to 4TB storage capacity. It provides ultra-fast data reading and writing speeds to ensure smooth operation and fast response of the system
- High-performance Graphics :Equipped with AMD Radeon 780M integrated graphics card (based on RDNA3 architecture, 12CU, max frequency 2700MHz), it supports high-resolution and high-refresh rate image output. It supports ultra-high-definition image quality through HDMI 2.1 (8K@60Hz), DP 1.4 (4K@144Hz) and USB4 interfaces (8K@60Hz), meeting the needs of professional work and entertainment
- Efficient Coling System: The active cooling system with phase change material reduces CPU temperature by 25% compared to passive heat sinks, ensuring stable and efficient performance under heavy workloads. It delivers a stable 60W performance while the system operates at a noise level below 35dB, keeping your device cool and quiet whether you're working or playing
- Multi-interface & Fast Network: 2xUSB 3.2 Gen2 Type-A ports, 2xUSB 2.0 ports, 1xUSB4 port (supports Alt PD), 1xHDMI port, 1xDisplayPort port, 1xaudio interface and 1xClear CMOS button. MINISFORUM UM870 Slim mini computer has 2.5G WLAN wired network port and Wi-Fi 6E/BT5.3 wireless network card, providing stable network connection (software routers, firewalls, NAT, and network isolation) and fast transmission speed
- Note:Please update the driver version before updating the system.
Brand: MINISFORUM
Operating System: OS
CPU Model: AMD Ryzen 7
CPU Speed: 4.9 GHz
Cache Size: 16 MB
Graphics Card Description: Integrated
Graphics Coprocessor: AMD Radeon 780M
Memory Storage Capacity: 32 GB
Specific Uses For Product: Business, Education, Everyday Use
Personal computer design type: Mini PC
Screen Resolution: 7680 x 4320
Max Screen Resolution: 7680x4320
Processor: 4.9 GHz amd_ryzen_7
RAM: 32 GB DDR5
Memory Speed: 5600 MHz
Hard Drive: 1 TB SSD
Graphics Coprocessor: AMD Radeon 780M
Card Description: Integrated
Number of USB 2.0 Ports: 2
Number of USB 3.0 Ports: 2
Brand: MINISFORUM
Series: UM870 Slim
Item model number: UM870 Slim
Hardware Platform: PC
Operating System: OS
Item Weight: 3.1 pounds
Product Dimensions: 5.12 x 4.96 x 1.97 inches
Item Dimensions LxWxH: 5.12 x 4.96 x 1.97 inches
Processor Brand: AMD
Number of Processors: 8
Computer Memory Type: DDR5 RAM
Hard Drive Interface: PCIE x 4
Date First Available: November 4, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Nov 21
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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These AMD powered mini PCs are great. They just work, have a fast and powerful CPU, have decent integrated graphics and are extremely quiet and efficient. Perfect for just getting work done.
Reviewed in the United States on September 17, 2025 by C. Thompson
Size: UM890 Pro-32/1TB
I purchases the UM890 11 months ago when I ran into a problem. I contacted Minisforum support and worked with them to diagnose the problem. They responded to all of my emails within a day. It turned out to be a problem with RAM slot 1 and they gave me a return authorization. I sent my UM890 to their warehouse in California as directed. 3 days later they sent me a replacement computer and everything seems great. So great experience with their customer support and within 2 weeks, my faulty computer was replaced under warranty. I was only out the shipping to CA. As for the UM890 itself, I love the machine. Very compact and powerful. Nice array of ports to use for its small size. Its made a believer out of me in PC mini format. The only knock thus far is the RAM slot failure after 11 months. Hopefully the replacement will prove to be more reliable. My friend winded up ordering the same model based on my experience.
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Reviewed in the United States on September 2, 2025 by Phillip Pontious
Size: UM890 Pro-64/1TB
Note in the picture that the Minisforum UM890 Pro is less than half the size of my Unifi USW Enterprise 8 PoE switch. The UM890 Pro is REALLY quiet. Under normal conditions you never hear the fan. I ended up putting a Samsung 890 Pro 4TB NVMe in mine to replace the provided 1TB NVMe. I run Ubuntu 24.04 on mine and it runs perfectly from the start. I have mentioned this little marvel on my @ScottiBYTE YouTube channel multiple times. I bought the UM890 to replace my Dell XPS 8930 which had developed problems. I configured the two 2.5Gbps NICs as an 802.3ad aggregated connection to my aforementioned switch and it is great to have a 5Gbps connection that hums along flawlessly. My only complaint has been the design of the BIOS. This BIOS lacks support for legacy boot. So, you will be booting EFI only. I suppose the fact that Microsoft has dispensed with MBR booting has influenced PC makers. The BIOS also lacks granular control over PXE booting features and for that matter I have not managed to get PXE booting to work at all. I have both Netboot.XYZ and a iVentoy PXE servers and my other systems boot from them fine. The UM890 takes the NBP download from the server but hangs on initializing iPXE. I use PXE booting for my backups and I am presently using a USB Bootable thumb drive as an alternative since PXE doesn't work. I emailed Minisforum three times and their support apparently had no idea what PXE was and told me they only support Windows thinking PXE was an OS. The last BIOS issue I found was there appears to be absolutely no provision for a BIOS upgrade to this machine ever. After 40 years of building and configuring PCs that is a first. In fact the BIOs is what I would call the "PlaySckool" BIOS. However, past the BIOS this system is completely and totally FAST and AWESOME and I could not have hoped for better. By the way, pro tip... F7 is the key to bring up the alternate device boot menu.
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Reviewed in the United States on December 9, 2024 by ScottiBYTE Enterprise Consulting Services ScottiBYTE Enterprise Consulting Services
Size: UM890 Pro-64/1TB
I got it and it was okay at first for older games but when I tried to play multiplayer games it was horrible then I tried to increase the performance in the settings and went down for and update then tried starting it back up and now it doesn't work it turns on and off way too quick and there is no way to troubleshoot it so I request a refund and they agreed through chat and said I'd have my refund in 2-3 hours then days later after not getting it I got in a chat with them and that said I couldn't get a refund because it went over 30 days but a few days before they said I'd have my refund in 2-3 hours and so I couldn't stand being lied to and called them and talked to 2 people who could barely speak any English and they refused to give me a refund and I about lost it so $766 out the window for me. If anyone decides to get this junk get the 2 year warranty yes it's $60 but I promise you that you will be sending it back so just maybe not get it to begin with really.
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Reviewed in the United States on November 30, 2024 by Ace
Size: UM890 Pro-64/1TB
Really nice desktop computer which is capable of light gaming... And with the provided occulink port, you can go higher end gaming if you want without getting a whole new system
Reviewed in the United States on October 25, 2025 by TivoGuy
Size: UM890 Pro-64/1TB
Couple Win11 issues -- like it took a bit to find out the OS was deactivating the keyboard after a couple minutes of inactivity, but after using crapfix, got rid of most of the bloatware. The unit itself works fine except for one issue: The audio plug on the front is non-functional -- plug doesn't "click" in and falls out easily, no sound except for some feedback and static -- that's the minus one star. Luckily it's not a big deal for me because the bluetooth works just fine.. Added a USB strip -- not enough USB ports on the unit. Actually, it's so small that there isn't space for many more ports. Works good for dual monitors, one HDMI and one DP. Very quiet. The blue power button is very bright -- little fingernail polish and it's fine. Held the unit down with some velcro patches on the four corners....otherwise it slides around when hitting the power button.
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Reviewed in the United States on September 6, 2025 by JMc
Size: UM890 Pro-Barebone
This barebones mini-PC delivered exactly what I needed for a quiet, compact, high-performance build. I added DDR5 memory and two NVMe drives (1TB + 4TB), and the dual internal M.2 slots made setup clean and easy. I'm currently running 4 monitors (via HDMI, USB-C, and DisplayPort), and everything works flawlessly. The two USB4 ports are especially handy — one for display output and the other connected to an external SSD. Speeds are excellent, and all USB ports support high-speed transfers. Fan noise is impressively low — much quieter than my old tower PC — and system responsiveness is snappy even under load. Setup tip: After Windows install, be sure to update all drivers using the manufacturer’s support page and AMD's driver tools. This ensures proper GPU, USB, and SSD performance. Very happy with this system — small footprint, big performance, great flexibility.
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