MINISFORUM UM880 Plus

The MINISFORUM UM880 Plus is a 5-inch cube built around the AMD Ryzen 7 8845HS, an 8-core, 16-thread chip that boosts to 5.1GHz. Its OCuLink port carries PCIe 4.0 x4 out to an external graphics card, a wider pipe than the USB4 port beside it. On their own, the Radeon 780M graphics cover desktop work and lighter games. The rest of the port set is current: USB4, HDMI 2.1, DisplayPort 1.4, and 2.5 Gigabit Ethernet.

What works and what to plan around

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MINISFORUM UM880 Plus Comparison Chart

	MINISFORUM UM880 Plus
Price	List Price: $869.00 Amazon Prices: Loading prices...
Version	32GB/1TB
Performance Rating	5.7
Operating System	Windows 11 Pro
Processor	Octa-core 3.80 Ghz (max 5.10 Ghz) AMD Ryzen 7 8845HS
GPU	Integrated AMD Radeon 780M
RAM	32 GB
Internal Storage	1 TB
Dimensions width x length x thickness	5 x 5 x 2.17 inches (127 x 127 x 55.12 mm)
Weight	1.32 lbs (0.6 kg)
WiFi	Wi-Fi 6E (802.11ax)
Bluetooth	Bluetooth 5.3
Ethernet	1 Ethernet port at 2.5 Gbps
HDMI	1 HDMI Port
DisplayPort	1 DisplayPort
VGA	No VGA Ports
USB Ports	2 USB 2.0, 2 USB 3, 1 USB-C (1 USB4)
Thunderbolt Ports	No
OCuLink	Via M.2 adapter (PCIe 4.0 x4, uses one M.2 slot)
Internal SATA Ports	No SATA ports
Card Reader	No Card Reader
Headphone Jack	combo
Fanless	No
VESA Mount	Yes
In the Box	Mini PC, power adapter, HDMI cable, VESA mounting bracket, OCuLink adapter board, user manual, spare bottom feet
Expandability	RAM upgradable to 96GB DDR5 via 2x SO-DIMM slots. Storage expandable to 8TB total via 2x M.2 2280 PCIe 4.0 NVMe slots. OCuLink port enables external GPU expansion but uses one M.2 slot. WiFi card is user-replaceable.

Two M.2 slots, and the OCuLink adapter wants one

The chassis measures 5 inches square and barely over 2 inches thick, shorter than an iPhone by reviewer COOLTOY’s hands-on measure. Aluminum top and bottom panels sandwich plastic sides that carry the port array, and the whole thing weighs 1.32 pounds. The rear panel holds HDMI 2.1, DisplayPort 1.4, USB4, two USB 3.2 ports, the 2.5G Ethernet jack, and the power input; the front adds two USB 2.0 ports, a 3.5mm combo audio jack, and the power button. VESA mounting hardware ships in the box, so it can hang behind a monitor and disappear from the desk.

In Hostbor’s testing the Ryzen 7 8845HS scored 1,787 single-core and 17,070 multi-core in Cinebench R23. NGXP Tech’s torture testing held the multi-core result at 16,000 to 16,600 across 10 consecutive runs with no thermal throttling. In Hostbor’s power testing, idle consumption sits around 15 watts, gaming draws roughly 45 watts, and full stress maxes out at the configured 65W TDP, with a peak temperature of 81.4 degrees Celsius. Hostbor measured noise at 34dB under that load; Robtech’s unit ran above 40 dBA under load, as covered below.

Two DDR5 SO-DIMM slots take 48GB modules for a 96GB ceiling, and the two M.2 2280 PCIe 4.0 slots hold up to 8TB of storage combined. The included OCuLink adapter board installs into one of those M.2 slots, so a buyer picks between maximum internal storage and the external graphics port. Wireless comes from WiFi 6E and Bluetooth 5.3, and the MediaTek MT7902 card is user-replaceable, which Linux owners can use to fit an Intel AX210 for better driver support.

Reviewer Insights

Robtech: the single RAM stick holds the 780M back

Robtech benchmarked the UM880 Plus twice, once in its shipping configuration with one 32GB stick and once with a second stick added and BIOS performance mode enabled. The stock 3DMark scores landed near the much weaker Minisforum UM750L, and the second stick produced large gains across Fire Strike, Time Spy, and Steel Nomad Light: “So much GPU performance is left on the table by only having a single stick of RAM.” The measured numbers were 8W at idle, close to 100W at the wall in performance mode, a CPU peak of 92 degrees Celsius, and load fan noise above the 40 dBA average even in the default balanced profile. The review confirms the wireless problem Linux buyers should plan for, “This MediaTek Wi-Fi chip does not play nicely with Linux and doesn’t work at all,” while wired Ubuntu worked fine. Two other complaints: the shipping RAM choice, “Why they put in a 32 GB stick is hard to fathom and really messes with its performance,” and the chassis, “Glued-on rubber feet is an automatic disqualifier for being easy to open.” Testing the same external GPU over both connections, Robtech found the extra bandwidth of OCuLink made a big difference against USB4.

Family Pop TV: 96GB of memory and a 35B model running offline

Family Pop TV swapped the shipping 32GB for 96GB to run large language models on the box with the network disconnected: “I opened it up and pushed it to 96 gigs because the extra memory is what takes this from technically functional to realistically usable.” The BIOS caps dedicated graphics memory no matter how much is installed, “The Radeon 780M here has a hard BIOS limit of 16 gigs for dedicated GPU memory,” but the models still ran because the integrated graphics pull from the shared system memory pool rather than the SSD swap file. Offline, 7B and 14B models responded at usable speed, 27B started pushing the limits, and “35B, that’s more of a stress test for the hardware than something you’d want to use all day.” The integrated graphics hit their ceiling on modern games in the same session: Star Wars ran at 1080p low settings, and Indiana Jones needed “720p, lowest settings, and yeah, it works, but nobody’s calling that a premium gaming experience.” An RTX 5080 attached over OCuLink lifted that, against the tradeoff the adapter board forces, “you’re basically choosing extra SSD storage or absurd desktop GPU performance.”

James Montemagno: .NET build times and 96GB of headroom

James Montemagno comes at this box as a software developer, booting up VS Code and timing a from-scratch .NET clean and build to gauge compilation performance. He notes the 32GB of RAM expands to 96GB and names the OCuLink port for an external GPU and USB4 as key points of the machine. He says he is “not much of a benchmark person,” and stays with practical developer workloads.

COOLTOY: name-brand internals, and an adapter you fit yourself

COOLTOY focuses on retro emulation, which he says is where these mini PCs shine. Running his emulators at 1080p and 60fps, he reports it handles retro consoles all the way up to Xbox, PlayStation 3, and PlayStation 4 smoothly, calling it “the most powerful mini PC I’ve played to date.” He is upfront that it is not the machine for modern PC games at high settings (“if you’re looking for modern PC games this really isn’t going to be for you”), pointing buyers toward the OCuLink eGPU route for that. Opening it up, he finds name-brand internals (a Kingston SSD and Crucial DDR5), and his one gripe is that the OCuLink adapter has to be self-installed, which means peeling off the bottom rubber feet to reach the screws.

The written reviews back the noise and power figures

According to Hostbor, it earns an 8.7 out of 10 rating and represents “one of the best values in the mini PC market” when priced under $550. Their testing put power savings at 67% versus traditional desktops, with annual electricity savings potentially exceeding $150. Retro Handhelds tested the system over several weeks and reported it was “easily the quietest of the bunch” compared to Beelink and GMKTec mini PCs with older Ryzen 7 processors. They also confirmed excellent Linux compatibility, with ZorinOS working out of the box with all necessary drivers. NGXP Tech calls it a compact workstation that “fits in your hand but rivals full-sized desktops,” praising the thermal management and DIY-friendly chassis design.

Customer Reviews

The Amazon listing pools reviews across several Minisforum models (some buyers are plainly reviewing the X1 Lite or the UM880 Pro), so the headline star average is not specific to this model. Verified buyer M. Brandon rates it 4.5 stars and runs it as a secondary living-room PC for light Steam games, measuring the bundled NVMe drive at around 5,400/4,000 MB/s read/write and noting that the single USB4 Type-C port is “a godsend” for carrying his monitor’s power and data over one cable. His main practical caution is the port count: “It only has two USB2.0 ports so if you have a wireless keyboard or mouse, you’ll be struggling for other devices.” He also recounts the bundled power brick shorting out and frying the unit after he dropped a controller on it; MINISFORUM issued an RMA and replacement after he reached out, though he had to repack the RAM and original SSD to return it. Read more owner reviews on Amazon.

The OCuLink port earns its M.2 slot only if you use it

The buying decision is whether to keep both M.2 slots filled with storage, or give one up to the adapter board and plan on an external graphics card later. Developers and video editors who want that upgrade path get it alongside 65W of sustained CPU power and room for 96GB of memory, which is where the money goes. It sits in 2026’s quiet best-buy tier of mid-range mini PCs, and buyers weighing it against Apple’s recently released sub-$600 laptop can find the full cost breakdown in our mini PC versus MacBook Neo comparison.

Linux owners should budget for the Intel AX210 wireless swap before the box arrives. Anyone unsure what to do with the pre-installed Windows can read our guide on whether to keep Windows, wipe it, or switch to Linux. If a silent desk matters more than the eGPU port, the tradeoffs against a portable machine are covered in our look at mini PCs for remote work. Starry Hope’s Mini PC Comparison Chart puts these specs beside the rest of the catalog.

Upgrades

Accessories that fit the MINISFORUM UM880 Plus's OCuLink and USB4 or Thunderbolt ports.

OCuLink dockMinisforum

DEG1 eGPU Dock

A plain OCuLink dock with a PCIe 4.0 x4 link for a desktop graphics card; it takes an ATX or SFX power supply that you supply.

List price $109.00

Buying options

OCuLink dockAOOSTAR

EG02 eGPU Dock

Connects over OCuLink for the full PCIe 4.0 x4 link and has Thunderbolt 5 as a second input; the graphics card and power supply are sold separately.

List price $219.00

Buying options

eGPU enclosureRazer

Core X V2

A Thunderbolt 5 enclosure that Razer lists as working with Thunderbolt 4 and USB4 hosts; it fits a four-slot card and needs an ATX power supply.

List price $349.99

Buying options

eGPU enclosureMinisforum

DEG2 eGPU Dock

Connects over USB4 or Thunderbolt 5, with an OCuLink input behind a switch, and adds an M.2 slot; it needs an ATX or SFX power supply.

List price $259.90

Buying options

eGPU enclosureSonnet

Breakaway Box 850 T5

Has an 850W power supply built in, so only the graphics card is extra, and works with Thunderbolt 4 and USB4 Windows PCs.

List price $599.99

Buying options

Thunderbolt/USB4 dockCalDigit

TS4 Thunderbolt 4 Dock

An 18-port dock that CalDigit lists for Thunderbolt 4 and USB4 hosts, with 2.5GbE and a DisplayPort 1.4 output.

List price $379.99

Buying options

Thunderbolt/USB4 dockPlugable

TBT4-UD5 Thunderbolt 4 Dock

Two HDMI ports drive two 4K60 monitors from one Thunderbolt 4 or USB4 port on a Windows PC.

List price $199.95

Buying options

Thunderbolt/USB4 dockUGREEN

Revodok Max 208 Thunderbolt 4 Dock

Adds three Thunderbolt 4 ports for dual 4K60 displays plus gigabit Ethernet; it has no HDMI port, so monitors connect over USB-C or an adapter.

List price $169.98

Buying options

Frequently Asked Questions