Beelink SER9 Pro H255 vs MSI Cubi NUC AI+ 3MG

Beelink SER9 Pro H255, manufacturer product view
Black MSI Cubi NUC AI+ 3MG viewed from the front and above
VS
Beelink SER9 Pro H255 Image: Beelink
MSI Cubi NUC AI+ 3MG Image: MSI

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Beelink SER9 Pro H255

H255 / 24GB LPDDR5X-6400 / 1TB SSD / Windows 11 Pro / Frost Silver / US adapter

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MSI Cubi NUC AI+ 3MG

Core Ultra 9 386H / 16GB DDR5 / 1TB SSD / Windows 11 Pro

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iThese are manufacturer-sourced specifications, not MiniPCBench test results. Confirm the exact processor, memory, storage, price, and availability before buying.
Memory
Storage

1Is it fast for normal work?

2Can it handle sustained work?

3Can it game?

4Is it loud or hot?

5How much electricity does it use?

6Can I upgrade and connect everything?

Beelink SER9 Pro H255

  • Memory is upgradeable No
  • Storage expansion Yes
  • USB4 Yes
  • Speaker assembly during disassembly
  • Storage is upgradeable Not available
  • Security lock also restricts bottom access Not available

MSI Cubi NUC AI+ 3MG

  • Memory is upgradeable Yes
  • Storage expansion Not available
  • USB4 Not available
  • Speaker assembly during disassembly Not available
  • Storage is upgradeable Yes
  • Security lock also restricts bottom access

7Is it good value?

8Will it be dependable?

MSI Cubi NUC AI+ 3MG

  • Network boot stack was disabled by default

References

  1. MSI. Cubi NUC AI+ 3MG US SKU specifications. Product page. Accessed .

    Configuration: Core Ultra 9 386H / 16GB DDR5 / 1TB SSD / Windows 11 Pro

    Disclosure: Manufacturer specifications; no MiniPCBench measurements.

  2. Level1Techs. Finally! Panther Lake! A Quick Look at the Cubi NUC AI+ 3MG. Video review. . Accessed .

    Configuration: Core Ultra 9 386H / 32GB DDR5-5600 / 1TB Phison SSD / Windows 11 Pro. BIOS EB211IMS.1A20 dated March 4, 2026 shown. Power profile unconfirmed.

    Disclosure: Reviewer thanks MSI for access to the hardware; whether the unit was loaned or retained is unclear. Affiliate link disclosed.

Value for money

No value comparison is available. It requires eligible test scores and at least four current price observations in seven days.

Specification differences

Differences supported by the listed manufacturer specifications

Higher listed specifications for Beelink SER9 Pro H255

  • Provides 2 storage slots versus 1

Higher listed specifications for MSI Cubi NUC AI+ 3MG

Verified specifications

Manufacturer-sourced specifications and current testing status

Processor

SpecificationSER9 Pro H255Cubi NUC AI+ 3MG
CPUAMD Ryzen 7 H 255Intel Core Ultra 9 386H
Cores / threads8 / 1616 / 16
Processor default TDPNot disclosedNot disclosed
Integrated graphicsAMD Radeon 780MIntel Graphics

Memory and storage

SpecificationSER9 Pro H255Cubi NUC AI+ 3MG
Memory typeLPDDR5X-6400 (soldered)DDR5 SO-DIMM
Maximum memoryNot published96 GB
Upgradeable memoryNoYes
Storage slots21

Connectivity

SpecificationSER9 Pro H255Cubi NUC AI+ 3MG
Ethernet2.5Gb Ethernet2 x Intel I226-V 2.5GbE
WirelessIntel AX200 Wi-Fi 6; Bluetooth 5.2Wi-Fi 7; adapter model and Bluetooth version unconfirmed for this SKU
USB4YesYes
ThunderboltNot publishedYes

Size and price

SpecificationSER9 Pro H255Cubi NUC AI+ 3MG
Enclosure volumeNot published0.51 liters
List priceNot publishedNot published
Product classNot assignedNot assigned