MSI Cubi NUC 3MG 2026, Core Ultra 7, 16GB, 1TB SSD, Black
The 2.3 GHz Intel Core Ultra 7 355 8-core processor with integrated Intel Graphics and AI Boost NPU powers this 0.50 kg mini PC, which includes 16GB DDR5 RAM, a 1TB SSD, Wi-Fi 7, and dual 2.5GbE LAN ports for fast connectivity. Its compact design mounts behind a monitor, and the Thunderbolt 4 and dual HDMI 2.1 ports support multi-display setups, while the fingerprint reader adds quick, secure logins. Best for home office and business users who need a space-saving desktop for routine applications, multitasking, and light productivity work, not for gaming.
Snapshot
The 30-Second Version
A tiny office box with killer connectivity and a CPU that punches above its weight class. Just don't ask it to render anything more demanding than a PowerPoint.
Pros & Cons
Pros
- Tiny footprint, mounts behind a monitor
- Core Ultra 7 with AI Boost NPU for local AI tasks
- Dual 2.5GbE Ethernet and Wi-Fi 7
- Thunderbolt 4 and dual HDMI 2.1
- 1TB SSD out of the box
Cons
- Integrated graphics are bottom-tier
- Reliability scores are mediocre
- 16GB RAM is fine, but not future-proof
- No price listed, which is never a good sign
The proof
Performance
The Core Ultra 7 355 with 16GB of DDR5 keeps things snappy for everyday work. Our database puts the CPU right around average for mini PCs, which sounds boring until you realize it's doing that in a 0.50kg box. The integrated Intel Graphics are the weak link, landing in the bottom 10% of all products we track. That's fine for Excel and YouTube, but don't even think about gaming. Storage is solid at 54th percentile, and the 1TB SSD means you won't be juggling files. What surprised me? The port selection. Thunderbolt 4, dual HDMI 2.1, dual 2.5GbE Ethernet, and Wi-Fi 7 in a box this small is genuinely impressive.
Specifications
Full Specifications
Processor
| CPU | Intel Core Ultra 7 Series 3 |
| Cores | 8 |
| Frequency | 2.3 GHz |
| L3 Cache | 12 MB |
Graphics
| GPU | Intel Graphics |
| Type | Integrated |
Memory & Storage
| RAM | 16 GB |
| RAM Generation | DDR5 |
| Storage | 1 TB |
| Storage Type | SSD |
Build
| Form Factor | mini |
| PSU | 120 |
| Weight | 0.5 kg / 1.1 lbs |
Connectivity
| USB-C Ports | 2 |
| USB Ports | 2 |
| Thunderbolt | Thunderbolt 4 x 2 |
| HDMI | 2x HDMI 2.1 |
| DisplayPort | 0 |
| Wi-Fi | Wi-Fi 7 |
| Bluetooth | No |
| Ethernet | 2.5 Gigabit Ethernet |
System
| OS | Windows 11 Home |
vs Competition
Stacked against the Apple Mac Studio M3 Ultra, this thing looks like a toy, but that's not a fair fight. The Mac Studio costs way more and targets creators. Against other mini PCs and compact desktops like the Lenovo Legion Tower 5a or HP OMEN, the Cubi loses on graphics but wins on size and connectivity. If you need dual Ethernet and Thunderbolt in a box smaller than a sandwich, the Cubi is your pick. If you need any GPU muscle at all, look elsewhere.
| Spec | MSI Cubi NUC 3MG | Apple Mac Studio M3 Ultra | Lenovo T Series Towers Legion Tower 5a Gen 10 | Dell Desktop ECT1250 | HP OMEN GT16-0364 | CLX SET TGMSETRTU5204BM |
|---|---|---|---|---|---|---|
| CPU | Intel Core Ultra 7 Series 3 | Apple M3 Ultra | AMD Ryzen 7 7800X3D | Intel Core Ultra 7 265 | AMD Ryzen 7 8700F | Intel Core i9 14900KF |
| RAM (GB) | 16 | 96 | 32 | 32 | 32 | 64 |
| Storage (GB) | 1024 | 1024 | 4096 | 2048 | 1024 | 8192 |
| GPU | Intel Graphics | Apple M3 Ultra 60-core | NVIDIA GeForce RTX 5070 Ti | Intel UHD Graphics | NVIDIA GeForce RTX 5070 | NVIDIA GeForce RTX 5070 |
| Form Factor | mini | sff | mid-tower | sff | mid-tower | mid-tower |
| Psu W | 120 | - | 850 | 180 | 850 | 850 |
| OS | Windows 11 Home | macOS | Windows 11 Home | Windows 11 Home | Windows 11 Home | Windows 11 Home |
| Compare | Compare | Compare | Compare | Compare |
| Product | CPU | GPU | RAM | Ports | Storage | Reliability |
|---|---|---|---|---|---|---|
| MSI Cubi NUC 3MG | 52.7 | 7.6 | 46.2 | 51.7 | 53.7 | 37.4 |
| Apple Mac Studio M3 Ultra Compare | 99.7 | 76 | 95.7 | 93.8 | 53.7 | 99.3 |
| Lenovo T Series Towers Legion Tower 5a Gen 10 Compare | 73.6 | 93.1 | 78.1 | 88.4 | 98.2 | 70 |
| Dell Desktop ECT1250 Compare | 88.6 | 58.7 | 81.8 | 74.5 | 82.9 | 70 |
| HP OMEN GT16-0364 Compare | 69.8 | 89.3 | 87.3 | 98 | 53.7 | 70 |
| CLX SET TGMSETRTU5204BM Compare | 95 | 89.3 | 96.5 | 84.2 | 99.2 | 11.6 |
Price
Value & Pricing
Pricing is all over the map. US listings range from $1,199 to $1,449, and Canadian listings span CAD 1,751 to CAD 2,029. That's a $250 spread in the US alone, so shop around. Best Buy's price match guarantee helps, but the fact that there's no single MSRP makes this feel like a product still finding its footing. For a business-focused mini PC with this port selection, the lower end of that range is reasonable. The higher end? You're paying for the AI branding.
Amazon 1 offer From £1,620
Price History
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Overview
The MSI Cubi NUC 3MG is a tiny box with a big job: bringing Intel's Core Ultra 7 and AI-ready NPU to desks where space is tighter than a budget airline seat. It's not a gaming rig, and it's not pretending to be. What it is, is a compact workhorse for office tasks, video calls, and light AI workloads. The one thing to know? It's a niche machine that nails the niche, but don't expect it to flex beyond spreadsheets and browser tabs.
Common Questions
Q: Can this run modern games?
No. The integrated Intel Graphics sit in the bottom 10% of everything we track. This is a work machine, not a gaming rig. Stick to solitaire or cloud gaming.
Q: Is 16GB of RAM enough?
For office work, browser tabs, and video calls, yes. For heavy multitasking or running local AI models, you'll want more. The RAM is DDR5, but it's not upgrade-friendly in a box this small.
Q: Can I mount this behind a monitor?
Yes, that's one of its main selling points. The compact design and VESA mount compatibility mean it can disappear behind your display and free up desk space.
Who Should Skip This
If you're looking for a gaming PC or anything with real graphics power, this isn't it. Go get a Lenovo Legion Tower or HP OMEN instead. If you need a machine for video editing or 3D work, the integrated GPU will frustrate you daily. This is for spreadsheets, not shaders.
Verdict
The MSI Cubi NUC 3MG is a purpose-built machine for compact offices and business deployments. It's not exciting, but it's competent where it counts: connectivity, storage, and everyday performance. Buy it if you need a tiny, well-connected Windows box for work. Skip it if you want to game, edit video, or do anything graphics-heavy.
Usage Scores
- Overall50.6
- AI/LLM15.9
- Gaming7.6
- Portability57.8
- Creator17.9
- Business51.4
- Developer49.5
- Home Office56.6
- Workstation37.7