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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

  • TypeStudent / Home Office
  • Form FactorMini PC
  • AI FeaturesCopilot+ PC
  • UsageConsumer / Home / Personal / Mainstream
  • ColorBlack
  • ProcessorIntel Core Ultra 9 386H
  • 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.

Highlights

  • 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

Specifications

BrandMSI
ModelCubi NUC AI+ 3MG-017US
TypeStudent / Home Office
Form FactorMini PC
AI FeaturesCopilot+ PC
UsageConsumer / Home / Personal / Mainstream
ColorBlack
ProcessorIntel Core Ultra 9 386H
Memory16GB DDR5 SODIMM
Storage1TB PCIe M.2 2280 M-Key
GraphicsIntel Graphics
Power Supply120W
Operating SystemWindows 11 Home
CPU TypeIntel Core Ultra 9 (Series 3)
CPU NameIntel Core Ultra 9 386H
L3 Cache Per CPU18 MB
GPU/VGA TypeIntel Graphics
Memory Capacity16GB DDR5
Memory Slot (Total)2
Maximum Memory Supported64 GB
SSD1TB
Storage Spec1TB PCIe M.2 2280 M-Key
LAN Speed2 x Intel I226-V (2.5G)
WLAN802.11be Wireless LAN
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
Front USB1 x USB 3.2 Gen2 Type-A (front)
1 x USB 3.2 Gen2 Type-C (front)
Rear USB2 x Thunderbolt4 Type-C (DP 1.4 alt-mode up to 4K@60Hz /PD-out15W) (Rear)
Video Ports2 x HDMI 2.1
Dimensions (H x W x D)1.48" x 4.71" x 4.54"
Weight1.1 lbs.

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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