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Small black Mini PC, compact square shape, matte finish

MSI

MSI Cubi NUC AI+ 3MG-015US Mini PC, Core Ultra 9 386H, 16GB DDR5, 1TB SSD

SKU CH-KV73-Y2H72

A compact Mini PC with a Core Ultra 9 386H, 16GB DDR5, 1TB storage and Wi-Fi 7 for home office tasks

  • TypeStudent / Home Office
  • Form FactorMini PC
  • AI FeaturesCopilot+ PC
  • UsageConsumer / Home / Personal / Mainstream
  • ColorBlack
  • ProcessorIntel Core Ultra 9 386H
  • Copilot+ PC enables on-device AI assistance
  • Intel Core Ultra 9 386H delivers 18 MB L3 cache for demanding workloads
  • 16GB DDR5 memory expandable to 64 GB via two SODIMM slots
  • 1TB PCIe M.2 2280 M-Key SSD provides fast local storage
  • Wi-Fi 7 and Bluetooth 5.4 with dual 2.5G LAN ensure responsive connectivity

Ready for AI work

The MSI Cubi NUC AI+ 3MG-015US is a compact desktop built around the Intel Core Ultra 9 386H processor with 18 MB L3 cache. It ships with 16GB DDR5 memory in two SODIMM slots and a 1TB PCIe M.2 2280 M-Key drive. Windows 11 Pro and Copilot+ PC support come pre-installed.

Home office or student desk

The small 1.48" x 4.71" x 4.54" chassis weighs 1.1 lbs and fits behind a monitor or on a crowded shelf. Dual 2.5G Intel I226-V LAN, Wi-Fi 7 and Bluetooth 5.4 keep connections fast. Buyers who need discrete graphics performance or more than 64 GB memory should look elsewhere.

16GB DDR5 soldered and slotted

The system includes 16GB DDR5 SODIMM memory with a second slot free for expansion up to 64 GB total. This specification decides whether the mini PC can handle your multitasking workload or if you must configure more memory at purchase.

Highlights

  • Copilot+ PC enables on-device AI assistance
  • Intel Core Ultra 9 386H delivers 18 MB L3 cache for demanding workloads
  • 16GB DDR5 memory expandable to 64 GB via two SODIMM slots
  • 1TB PCIe M.2 2280 M-Key SSD provides fast local storage
  • Wi-Fi 7 and Bluetooth 5.4 with dual 2.5G LAN ensure responsive connectivity

Specifications

BrandMSI
ModelCubi NUC AI+ 3MG-015US
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 Pro
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

How do I confirm the Core Ultra 9 386H and Copilot+ PC features are active after setup?

Open Windows Settings and check the About page for Intel Core Ultra 9 386H and the Copilot+ badge; Device Manager should list Intel Graphics and the 2.5 GbE Intel I226-V adapters.

What comes in the box and what must I purchase separately for memory or storage upgrades?

The unit ships with 16GB DDR5 SODIMM installed in one of two slots and a 1TB PCIe M.2 2280 M-Key SSD; add up to 48GB more DDR5 SODIMM or a second M.2 2280 drive for 64GB total memory.

Should I choose the 16GB or 64GB memory configuration for the Cubi NUC AI+ 3MG-015US?

The model includes 16GB DDR5 SODIMM with one free slot supporting up to 64GB total; start with 16GB and add a matching DDR5 module later if workloads demand more capacity.

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