Beelink SER9 Pro H255 vs GEEKOM Air12 2026 Edition
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Beelink SER9 Pro H255
H255 / 24GB LPDDR5X-6400 / 1TB SSD / Windows 11 Pro / Frost Silver / US adapter
GEEKOM Air12 2026 Edition
Pentium Gold 7505 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / black and gray chassis / US market
Amazon results may include other models. Verify the processor, memory, storage, and seller before buying.
| Memory | ||
|---|---|---|
| Storage |
1Is it fast for normal work?
Beelink SER9 Pro H255
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Multitasking slowed the reviewed base model Not available
GEEKOM Air12 2026 Edition
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Multitasking slowed the reviewed base model
Albert Unbox reported slowdown while playing YouTube, recording the screen and downloading software together. He also demonstrated lag in Photoshop. His unit had 8GB RAM and 256GB storage, so this is not a measured result for the 16GB/512GB configuration.
Albert Unbox · 1:58
2Can it handle sustained work?
Beelink SER9 Pro H255
-
Short CPU stress test did not report thermal throttling Not available
GEEKOM Air12 2026 Edition
-
Short CPU stress test did not report thermal throttling
Britec09 shows CPU-Z stressing the processor and HWiNFO reporting no thermal throttling on the 8GB/256GB review unit. Test duration, ambient temperature and firmware were not fully documented, so this does not establish sustained behavior for every workload.
Britec09 · 7:48
3Can it game?
Beelink SER9 Pro H255
Not available
GEEKOM Air12 2026 Edition
Not available
4Is it loud or hot?
Beelink SER9 Pro H255
Not available
GEEKOM Air12 2026 Edition
Not available
5How much electricity does it use?
Beelink SER9 Pro H255
Not available
GEEKOM Air12 2026 Edition
Not available
6Can I upgrade and connect everything?
Beelink SER9 Pro H255
-
Memory is upgradeable No
-
Storage expansion Yes
-
USB4 Yes
-
Speaker assembly during disassembly
Retro Game Corps shows the speaker assembly attached to the inner dust cover during disassembly of his 32GB SER9 Pro.
Retro Game Corps · 6:31 -
Storage is upgradeable Not available
-
Access to memory and storage Not available
GEEKOM Air12 2026 Edition
-
Memory is upgradeable Yes
-
Storage expansion Not available
-
USB4 Not available
-
Speaker assembly during disassembly Not available
-
Storage is upgradeable Yes
-
Access to memory and storage
FunkyScott47 opened his 8GB/256GB Air12 by removing four base screws and showed the memory and M.2 storage inside. The installed memory layout of this 16GB configuration remains unconfirmed.
FunkyScott47 · 3:58
7Is it good value?
Beelink SER9 Pro H255
Not available
GEEKOM Air12 2026 Edition
Not available
8Will it be dependable?
Beelink SER9 Pro H255
Not available
GEEKOM Air12 2026 Edition
Not available
References
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Beelink. SER9 Pro H255 specifications and configuration selector. Product page. Accessed .
Configuration: H255 / 24GB LPDDR5X-6400 / 1TB SSD / Windows 11 Pro / Frost Silver / US adapter
Disclosure: Manufacturer specifications; performance has not been independently measured.
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Retro Game Corps. Beelink SER9 Pro: Best $500 Mini PC Right Now. Video review. . Accessed .
Configuration: SER9 Pro H255 / 32GB LPDDR5X / 1TB SSD; differs from this 24GB configuration.
Disclosure: Manufacturer supplied the unit. Reviewer states no payment or advance review; affiliate links disclosed.
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GEEKOM. Air12 2026 Edition specifications and US retail options. Product page. Accessed .
Configuration: Pentium Gold 7505 / 16GB DDR4 / 512GB SSD / Windows 11 Pro / black and gray chassis / US market
Disclosure: Manufacturer specifications; no MiniPCBench measurements.
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FunkyScott47. What can the THINNEST Mini-PC handle? | Testing the GEEKOM Air12 2026 Edition. Video review. . Accessed .
Configuration: Pentium Gold 7505 / 8GB DDR4 / 256GB SSD; installed OS edition and firmware unconfirmed.
Disclosure: Includes paid promotion label, coupon and Amazon affiliate disclosure; acquisition unconfirmed.
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Albert Unbox. GEEKOM Air12 2026 Edition – Can this super thin and tiny little mini PC handle real work?. Video review. . Accessed .
Configuration: Pentium Gold 7505 / 8GB RAM / 256GB storage / Intel UHD Graphics; OS edition and firmware unconfirmed. Product tags link other CPU editions, but footage and spoken configuration identify the 7505.
Disclosure: Reviewer states GEEKOM sponsored the video and that opinions reflect his own tests; commission-earning product tags.
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Britec09. The Perfect Linux Mini PC. Video review. . Accessed .
Configuration: Pentium Gold 7505 / 8GB DDR4 / 256GB SSD. Windows 11 shown; edition, build and firmware unconfirmed.
Disclosure: GEEKOM supplied the review unit; retention terms unconfirmed. Amazon affiliate links 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 GEEKOM Air12 2026 Edition
Verified specifications
Manufacturer-sourced specifications and current testing status
Processor
| Specification | SER9 Pro H255 | Air12 2026 Edition |
|---|---|---|
| CPU | AMD Ryzen 7 H 255 | Intel Pentium Gold 7505 |
| Cores / threads | 8 / 16 | 2 / 4 |
| Processor default TDP | Not disclosed | 15 W |
| Integrated graphics | AMD Radeon 780M | Intel UHD Graphics |
Memory and storage
| Specification | SER9 Pro H255 | Air12 2026 Edition |
|---|---|---|
| Memory type | LPDDR5X-6400 (soldered) | DDR4 SO-DIMM |
| Maximum memory | Not published | 32 GB |
| Upgradeable memory | No | Yes |
| Storage slots | 2 | 1 |
Connectivity
| Specification | SER9 Pro H255 | Air12 2026 Edition |
|---|---|---|
| Ethernet | 2.5Gb Ethernet | 1 × Gigabit Ethernet |
| Wireless | Intel AX200 Wi-Fi 6; Bluetooth 5.2 | Wi-Fi 6 and Bluetooth 5.2 |
| USB4 | Yes | No |
| Thunderbolt | Not published | Not published |
Size and price
| Specification | SER9 Pro H255 | Air12 2026 Edition |
|---|---|---|
| Enclosure volume | Not published | Not published |
| List price | Not published | Not published |
| Product class | Not assigned | Not assigned |