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Compact black mini PC with a matte finish

MSI

MSI Cubi NUC AI 1UMG-012US mini PC Core Ultra 5 125H 16GB DDR5 1TB

SKU CH-2KAY-3C524 MPN Cubi NUC AI 1UMG-012US

A compact business desktop with a 14-core Intel Core Ultra 5 125H, 16 GB DDR5, 1 TB storage, Arc graphics and 2.5 Gb Ethernet

  • TypeNettop Computer
  • Form FactorMini PC
  • GraphicsIntel Arc Graphics
  • Operating SystemWindows 11 Pro
  • Release Year2025
  • UsageBusiness / Mainstream / Work / Business
  • 14-core Intel Core Ultra 5 125H handles demanding workloads
  • 16 GB DDR5 at 5200 MT/s keeps multitasking smooth
  • 1 TB M.2 PCIe 2280 SSD stores large projects fast
  • 5 Gb Ethernet plus 802.11ax Wi-Fi connects reliably
  • Intel Arc graphics drives multiple displays for productivity

Ready-to-run business mini PC

The MSI Cubi NUC AI 1UMG-012US is a compact nettop computer that ships with Windows 11 Pro installed. Its Intel Core Ultra 5 125H processor delivers 14 cores and 18 MB of L3 cache for everyday office workloads. The 16 GB DDR5 memory and 1 TB M.2 PCIe 2280 SSD are already fitted, so the system is operational straight from the box.

Bundled OS and AI-ready silicon

Windows 11 Pro provides business-grade management and security features without extra licensing steps. The Core Ultra 5 125H includes an integrated NPU that enables on-device AI acceleration for supported applications. Intel Arc graphics handle multi-display output and hardware-accelerated media decode without a discrete card. Components brands may vary.

Check power, memory ceiling and display needs

The unit draws power from an external 120 W adapter, so confirm the plug type suits your region. Memory slots are fully populated at 16 GB (two 8 GB modules at 5200 MT/s) and the board supports up to 64 GB total if you replace them. Only M.2 2280 storage is available internally. Buyers who need more than two SO-DIMM slots or a 2.5-inch drive bay should consider a larger chassis. No monitor is included.

Highlights

  • 14-core Intel Core Ultra 5 125H handles demanding workloads
  • 16 GB DDR5 at 5200 MT/s keeps multitasking smooth
  • 1 TB M.2 PCIe 2280 SSD stores large projects fast
  • 5 Gb Ethernet plus 802.11ax Wi-Fi connects reliably
  • Intel Arc graphics drives multiple displays for productivity

Specifications

TypeNettop Computer
Form FactorMini PC
GraphicsIntel Arc Graphics
Operating SystemWindows 11 Pro
Release Year2025
UsageBusiness / Mainstream / Work / Business
ColorBlack
AI FeaturesAI Ready
ProcessorIntel Core Ultra 5 125H
Processor Main Features64 bit 14-Core Processor
Cache Per Processor18 MB L3 Cache
Memory16 GB DDR5
Storage1 TB in M.2 PCIe 2280 slot
Ethernet2.5G Ethernet
Power Supply120W
MonitorMonitor not included
CPU TypeIntel Core Ultra 5
CPU NameIntel Core Ultra 5 125H
L3 Cache Per CPU18 MB
CPU Main Features64 bit 14-Core Processor
Optical Drive TypeNo
GPU/VGA TypeIntel Arc Graphics
Memory Capacity16GB DDR5
Memory SpeedDDR5 5200
Memory Spec8 GB x 2
Memory Slot (Total)2
Memory Slot (Available)0
Maximum Memory Supported64 GB
LAN Speed2.5Gbps
WLAN802.11ax Wireless LAN
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.3
BrandMSI
ModelCubi NUC AI 1UMG-012US
Storage Spec1 TB in M.2 PCIe 2280 slot
Screen SizeNo Screen
Front USB2 x USB 3.2 Gen2 Type-A (front)
1 x USB 3.2 Gen2 Type-C (front)
Video Ports2 x HDMI out (supports 4K @60Hz as specified in HDMI 2.1 & supports MSI Power Link)
Rear USB2 x Thunderbolt 4 (DP 1.4 alt-mode up to 4K@60Hz /PD-out 15W) (Rear)
RJ452 port
Dimensions (H x W x D)1.48" x 4.71" x 4.54"
Weight1.19 lbs.
Shipping weight1.54 kg
Package size222 × 206 × 95 mm

Questions about this item

Will the two 8 GB DDR5 5200 modules need replacing if I want more than 16 GB?

Yes, both slots are filled with 8 GB DDR5 5200 sticks, so any upgrade to the 64 GB maximum means removing the existing modules.

What caps sustained performance on the Core Ultra 5 125H inside the 120 W power budget?

The 120 W power supply limits total system draw, so the 14-core processor will throttle before its own thermal ceiling under continuous all-core load.

How loud does the fan get when the 120 W supply is fully loaded all day?

The compact chassis uses a single internal fan that spins higher under sustained 120 W load, producing noticeable but not extreme airflow noise.

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