GMKtec NucBox K17 vs MSI Cubi NUC AI+ 3MG
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GMKtec NucBox K17
Core Ultra 5 226V / 16GB LPDDR5X / 1TB SSD / black / US plug
MSI Cubi NUC AI+ 3MG
Core Ultra 9 386H / 16GB DDR5 / 1TB SSD / Windows 11 Pro
Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.
| Memory | ||
|---|---|---|
| Storage |
1Is it fast for normal work?
GMKtec NucBox K17
Not available
MSI Cubi NUC AI+ 3MG
Not available
2Can it handle sustained work?
GMKtec NucBox K17
Not available
MSI Cubi NUC AI+ 3MG
Not available
3Can it game?
GMKtec NucBox K17
Not available
MSI Cubi NUC AI+ 3MG
Not available
4Is it loud or hot?
GMKtec NucBox K17
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Included SSD ran hot during sustained stress
Robtech found the included 1TB eKit Store SSD reached thermal-throttling territory when he stressed the CPU and SSD together for an extended period. This concern applies to his drive and test conditions; it is not a normalized temperature result.
Robtech · 9:56
MSI Cubi NUC AI+ 3MG
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Included SSD ran hot during sustained stress Not available
5How much electricity does it use?
GMKtec NucBox K17
Not available
MSI Cubi NUC AI+ 3MG
Not available
6Can I upgrade and connect everything?
GMKtec NucBox K17
-
Memory is upgradeable No
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Storage is upgradeable Yes
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Security lock also restricts bottom access Not available
MSI Cubi NUC AI+ 3MG
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Memory is upgradeable Yes
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Storage is upgradeable Yes
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Security lock also restricts bottom access
Level1Techs showed that the Kensington lock opening also secures the bottom cover, restricting access to memory and storage. The reviewed unit had 32GB memory rather than this SKU’s 16GB.
Level1Techs · 1:13
7Is it good value?
GMKtec NucBox K17
Not available
MSI Cubi NUC AI+ 3MG
Not available
8Will it be dependable?
GMKtec NucBox K17
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A supplied BIOS update fixed inconsistent performance
Robtech reported large performance changes between power cycles on his review unit. He said a BIOS supplied by GMKtec, dated August 13, fixed the issue. This records his result; the installed firmware on current retail units is unconfirmed.
Robtech · 3:05 -
Batocera 43 connected to Wi-Fi and Bluetooth
Team Pandory booted Batocera 43 from USB and reported working Wi-Fi and an 8BitDo Pro 3 Bluetooth controller on his 16GB/512GB unit. This is a basic compatibility check for that configuration.
Team Pandory · 10:27 -
Network boot stack was disabled by default Not available
MSI Cubi NUC AI+ 3MG
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A supplied BIOS update fixed inconsistent performance Not available
-
Batocera 43 connected to Wi-Fi and Bluetooth Not available
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Network boot stack was disabled by default
Level1Techs showed the UEFI network stack disabled in BIOS EB211IMS.1A20 and explained that it must be enabled for network boot. Firmware defaults can change.
Level1Techs · 8:17
References
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GMKtec. NucBox K17 specifications and US configuration. Product page. Accessed .
Configuration: Core Ultra 5 226V / 16GB LPDDR5X / 1TB SSD / black / US plug
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
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Robtech. One of Their Best Mini PCs Yet, BUT...GMKtec K17 Review. Video review. . Accessed .
Configuration: Core Ultra 5 226V / 16GB LPDDR5X-8533 / 1TB eKit Store PCIe 4.0 SSD / Windows 11 Pro. Reviewer tested a supplied August 13 BIOS update; Balanced and Performance modes.
Disclosure: Free review sample and affiliate links disclosed.
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Team Pandory. This $559 Mini PC Has Surprisingly Powerful Graphics! [GMKTEC K17 Review]. Video review. . Accessed .
Configuration: Core Ultra 5 226V / 16GB LPDDR5X-8533 / 512GB PCIe 4.0 SSD / Windows 11 Pro; Batocera 43. Firmware version unconfirmed.
Disclosure: Free review sample and affiliate links disclosed.
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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.
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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 GMKtec NucBox K17
- Provides 2 storage slots versus 1
Higher listed specifications for MSI Cubi NUC AI+ 3MG
- Supports 80 GB more memory
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | NucBox K17 | Cubi NUC AI+ 3MG |
|---|---|---|
| CPU | Intel Core Ultra 5 226V | Intel Core Ultra 9 386H |
| Cores / threads | 8 / 8 | 16 / 16 |
| Processor default TDP | Not disclosed | Not disclosed |
| Integrated graphics | Intel Arc 130V | Intel Graphics |
Memory and storage
| Specification | NucBox K17 | Cubi NUC AI+ 3MG |
|---|---|---|
| Memory type | LPDDR5X, up to 8533 MT/s, onboard | DDR5 SO-DIMM |
| Maximum memory | 16 GB | 96 GB |
| Upgradeable memory | No | Yes |
| Storage slots | 2 | 1 |
Connectivity
| Specification | NucBox K17 | Cubi NUC AI+ 3MG |
|---|---|---|
| Ethernet | 1 x 2.5GbE | 2 x Intel I226-V 2.5GbE |
| Wireless | Wi-Fi 6E and Bluetooth 5.2 | Wi-Fi 7; adapter model and Bluetooth version unconfirmed for this SKU |
| USB4 | Yes | Yes |
| Thunderbolt | Not published | Yes |
Size and price
| Specification | NucBox K17 | Cubi NUC AI+ 3MG |
|---|---|---|
| Enclosure volume | Not published | 0.51 liters |
| List price | Not published | Not published |
| Product class | Not assigned | Not assigned |