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Small black square mini PC, VESA-mountable, 37.5 mm thick

MSI

MSI Cubi NUC AI+ 3MG-008BUS barebone mini PC Core Ultra 5 322

SKU CH-C3E2-T55BS MPN Cubi NUC AI+ 3MG-008BUS

Barebone mini PC with Intel Core Ultra 5 322, Wi-Fi 7, Bluetooth 5.4, dual 2.5 Gbps LAN, dual Thunderbolt 4 and 0.51-litre VESA-mount chassis

  • ColorBlack
  • AI FeaturesCopilot+ PC
  • CPU TypeIntel Core Ultra 5 322
  • CPU Cores6-Core (2P+4LE)
  • Memory installedNo Memory
  • Memory slot2 x 262Pin SO-DIMM

Support CPU Intel Core Ultra 5 322

  • Ready for Copilot+ AI with Intel Core Ultra 5 322
  • 51-litre chassis fits behind a monitor via VESA
  • Dual 2.5 Gbps LAN plus Wi-Fi 7 and Bluetooth 5.4
  • Two Thunderbolt 4 ports drive up to four displays
  • Fingerprint power button and MSI Power Link for monitor-controlled startup

Compact barebone for AI workloads

The MSI Cubi NUC AI+ 3MG-008BUS is a 0.51-litre barebone mini PC built around an Intel Core Ultra 5 322 processor with six cores. It targets professionals and developers who want a Copilot+ PC platform for local AI acceleration but prefer to choose their own memory and storage. The chassis includes a VESA mount and a fingerprint-secured power button.

Thunderbolt 4 and dual 2.5 GbE limits

Two Thunderbolt 4 ports provide DisplayPort 1.4 alt-mode video at 4K 60 Hz and 15 W power delivery, enabling a four-display setup from a single unit. Dual Intel I226-V controllers deliver 2.5 Gbps wired networking, while Wi-Fi 7 and Bluetooth 5.4 handle wireless connectivity. HDMI 2.1 outputs add two more 4K 60 Hz display options. Front I/O includes USB 3.2 Gen 2 Type-A, Type-C and USB 2.0 Type-A ports.

Memory and storage you must add

The board offers two 262-pin SO-DIMM slots supporting up to 64 GB of dual-channel memory and a single M.2 2280 PCIe slot for storage. No RAM or SSD is included, so buyers who need a complete out-of-the-box system should look elsewhere. Integrated Intel Graphics handles visual output and supports XeSS upscaling.

Highlights

  • Ready for Copilot+ AI with Intel Core Ultra 5 322
  • 51-litre chassis fits behind a monitor via VESA
  • Dual 2.5 Gbps LAN plus Wi-Fi 7 and Bluetooth 5.4
  • Two Thunderbolt 4 ports drive up to four displays
  • Fingerprint power button and MSI Power Link for monitor-controlled startup

Specifications

BrandMSI
ModelCubi NUC AI+ 3MG-008BUS
ColorBlack
AI FeaturesCopilot+ PC
CPU TypeIntel Core Ultra 5 322
CPU Cores6-Core (2P+4LE)
Memory installedNo Memory
Memory slot2 x 262Pin SO-DIMM
Max Memory Supported64GB
M.2 Slot1 x M.2 2280 PCIe slot
Integrated GraphicsIntel Graphics
LAN2 x Intel I226-V (2.5G)
Max LAN Speed2.5Gbps
Wireless LAN802.11be
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)
1 x USB 2.0 Type-A (Front)
Other Front Ports1 x External Power Switch
1 x Kensington Lock
HDMI2 x HDMI out (supports 4K @60Hz as specified in HDMI 2.1 & supports MSI Power Link)
Thunderbolt2 x Thunderbolt4 Type-C (DP 1.4 alt-mode up to 4K@60Hz /PD-out15W) (Rear)
Power Supply120W
Dimensions4.71" x 4.54" x 1.48"
Weight1.1 lbs.
Shipping weight1.50 kg
Package size221 × 203 × 97 mm

Other versions of this model

2 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Should I pick the 64 GB memory ceiling or the single M.2 2280 slot for my build?

The board accepts two 262-pin SO-DIMMs up to 64 GB total and provides one M.2 2280 PCIe slot for storage, so you can populate both memory channels and still add a fast drive.

What does the Core Ultra 5 322 six-core layout deliver in daily workloads?

Two performance cores and four low-power efficiency cores share 64 GB dual-channel memory, giving responsive multitasking and enough headroom for AI-accelerated apps that use the on-chip NPU.

How many displays can the dual Thunderbolt 4 ports actually drive?

Each Thunderbolt 4 port supports DisplayPort 1.4 alt-mode up to 4K at 60 Hz, so together with the two HDMI outputs you can run a four-display setup.

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