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Black square mini PC with smooth matte finish and rounded edges

MSI

MSI Cubi NUC AI+ 3MG-017US Mini PC Intel Core Ultra 9 386H 16GB DDR5 1TB

SKU CH-Z18K-KZ7BB

A compact desktop with an Intel Core Ultra 9 386H processor, 16GB DDR5 memory and a 1TB PCIe M.2 2280 M-Key drive, plus Wi-Fi 7 and Bluetooth 5.4

  • ProcessorIntel Core Ultra 9 (Series 3)
  • Memory size16 GB DDR5 SODIMM
  • Storage drive1 TB PCIe M.2 2280 M-Key
  • GraphicsIntel Graphics
  • CPUIntel Core Ultra 9 386H
  • Wi-Fi standardWi-Fi 7
  • Intel Core Ultra 9 386H delivers strong performance for demanding tasks
  • 16GB DDR5 memory handles multitasking and AI workloads smoothly
  • 1TB PCIe M.2 2280 storage provides fast access to large files
  • Wi-Fi 7 and Bluetooth 5.4 ensure reliable wireless connectivity
  • Compact 1.1 lbs design fits easily into any workspace

Compact AI Mini PC for Home and Office

The MSI Cubi NUC AI+ 3MG-017US is a Mini PC built around an Intel Core Ultra 9 386H processor with 18 MB of L3 cache. It ships with 16 GB of DDR5 memory in two slots, expandable to 64 GB, and a 1 TB PCIe M.2 2280 NVMe drive. Integrated Intel Graphics drives two HDMI 2.1 outputs, while Wi-Fi 7 and Bluetooth 5.4 handle wireless connectivity.

Suited for Copilot+ workflows.

This system targets students and home-office users who want on-device AI acceleration via the Copilot+ PC platform and Windows 11 Home. Buyers who require a dedicated graphics card, more than two 2.5 GbE LAN ports, or internal 2.5-inch drive bays should consider larger chassis designs. The 120 W external power supply and 1.1 lb weight keep the desktop footprint minimal.

Single 1 TB NVMe slot decides storage headroom

The M.2 2280 M-Key slot accepts one PCIe NVMe SSD, so total capacity is capped at the installed 1 TB unless the drive is replaced. Users planning large media libraries or multiple virtual machines must budget for a higher-capacity module at purchase.

How it compares

Measured against everything we stock in Small Form Factor & Mini PCs, at today’s prices. Recalculated every night.

Price $1,134.99
Pricier than about 88% of the 132 comparable items (median $581.99).
Memory size 16 GB DDR5 SODIMM
Typical for this category: the median of 102 items is 16 GB.
RAM capacity 16 GB DDR5
Typical for this category: the median of 123 items is 16 GB.

Specifications

Product
Brand nameMSI
Model nameCubi NUC AI+ 3MG-017US
Product typeStudent / Home Office
Recommended useConsumer / Home / Personal / Mainstream
Product colorBlack
Processor
ProcessorIntel Core Ultra 9 (Series 3)
CPUIntel Core Ultra 9 386H
CPU modelIntel Core Ultra 9 386H
L3 cache per CPU18 MB
Memory
Memory size16 GB DDR5 SODIMM
RAM capacity16 GB DDR5
Total memory slots2
Max supported RAM64 GB
Storage
Storage drive1 TB PCIe M.2 2280 M-Key
SSD storage1 TB
Storage configuration1 TB PCIe M.2 2280 M-Key
Graphics
GraphicsIntel Graphics
GPUIntel Graphics
Connectivity
Wi-Fi standardWi-Fi 7
Network speed2 x Intel I226-V (2.5G)
Wi-Fi802.11be Wireless LAN
Bluetooth support5.4
Ports & slots
Front USB ports1 x USB 3.2 Gen2 Type-A (front)
1 x USB 3.2 Gen2 Type-C (front)
Rear USB ports2 x Thunderbolt4 Type-C (DP 1.4 alt-mode up to 4K@60 Hz /PD-out15 W) (Rear)
Video connectors2 x HDMI 2.1
Power
Power supply120 W
Size & build
Form factorMini PC
Overall dimensions1.48 in × 4.71 in × 4.54 in
Product weight1.1 lb (0.5 kg)
Software
Operating systemWindows 11 Home
More details
AI capabilityCopilot+ PC

Questions about this item

Do I need to buy a monitor and keyboard separately to use the Cubi NUC AI+ 3MG-017US?

Yes, the unit ships without a display, keyboard or mouse, so you must provide those peripherals to operate the Mini PC.

Will my existing 2.5 GbE switch work with the dual Intel I226-V LAN ports on this Mini PC?

The two Intel I226-V ports support 2.5 GbE and are backward compatible, so your current switch will operate at its highest supported speed.

How can I verify the 1 TB PCIe M.2 2280 drive is recognised after first boot?

Open Settings > System > Storage in Windows 11 Home; the 1 TB drive will appear as the primary volume with its full capacity shown.

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