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The GMKtec NucBox K12 embodies a new generation of mini-PCs, combining extreme power and compactness. Designed to meet the needs of demanding professionals, content creators and gaming enthusiasts, this mini-PC integrates high-end components in an elegant, discreet case. Thanks to its AMD Ryzen 7 H 255 processor and its AMD Radeon 780M graphics card, it offers performance comparable to that of a conventional tower, while taking up minimal space.
The GMKtec NucBox K12 is equipped with a AMD Ryzen 7 H 255 processor, with 8 cores and 16 threads, based on the Zen 4 architecture. With a base frequency of 3.8 GHz and a maximum frequency of 4.9 GHz, this CPU guarantees exceptional responsiveness for the most resource-hungry tasks. Combined with the AMD Radeon 780M graphics chip, comprising 12 cores and clocked at 2600 MHz, this mini-PC is capable of handling certain games in Full HD, as well as the most demanding creative software.
With 32 GB of dual-channel DDR5 RAM (expandable up to 128 GB), the NucBox K12 is designed to handle the heaviest applications without slowing down.
With dimensions of 154 × 151 × 73.6 mm and a weight of 920 g, the NucBox K12 is designed to blend discreetly into any environment. Its sober, black design suits any style, while its 13 customisable RGB lighting modes add a modern touch.
The NucBox K12 boasts advanced connectivity, ideal for users who need multiple screens or ultra-fast data transfer. It offers four video outputs: HDMI 2.1, DisplayPort 1.4, and 2 USB Type-C ports, enabling a quad-display configuration.
Select your criteria
General information |
Product name |
GMKtec NucBox K12 (K12 R7H255 32/1024) |
Brand |
GMKtec | |
Model |
K12 R7H255 32/1024 | |
Operating system |
Operating system |
Windows 11 Pro |
Operating system provided |
Yes | |
Processor and chipset |
Processor |
AMD Ryzen 7 |
CPU frequency |
4.9 GHz | |
Memory |
Memory size |
32 GB |
Memory type |
DDR5 | |
Memory Frequency(ies) |
DDR5 5600 MHz | |
Maximum RAM capacity per slot |
64 GB | |
Maximum RAM capacity |
128 GB | |
Storage |
Hard drive(s) configuration |
SSD 1TB |
Hard drive |
SSD 1TB | |
Secondary hard drive |
Without secondary hard drive | |
System hard drive type |
SSD (Solid State Drive) | |
Hard drive system interface with the computer |
M.2 - PCI-E | |
Optical drive |
None | |
Display |
Graphics chipset |
AMD Radeon 780M |
Multi-GPU type |
None | |
Network |
Wireless |
Yes |
Number of ports/Ethernet controler |
Integrated - 2.5 GbE | |
Network standard(s) |
2.5 Gbps Gigabit Ethernet (2.5 GbE) | |
Wireless network standard(s) |
Wi-Fi 6E | |
| Bluetooth 5.2 | ||
Connectivity |
Front panel connectors |
1 X 3.5mm Jack Female Stereo |
| 2 X USB 3.1 | ||
| 1 X USB 3.1 Type C | ||
Rear panel connectors |
1 X 3.5mm Jack Female Stereo | |
| 2 X RJ45 Female | ||
| 1 X USB 2.0 | ||
| 1 X USB 3.1 | ||
| 1 X USB 4 Type C | ||
| 1 X DisplayPort Female | ||
| 1 X HDMI Female | ||
| 1 X Oculink (PCIe Gen4) | ||
Equipment |
Keyboard and mouse provided |
No |
Physical characteristics |
PC format |
Mini PC |
Case format |
Mini PC | |
Case design |
Windowless case | |
Width |
151 mm | |
Height |
73.6 mm | |
Depth |
154 mm | |
Technical specifications |
Built |
Yes |
Use |
Family | |
| Professional | ||
| Home | ||
| Streaming | ||
Intel vPro technology |
No | |
Warranties |
Commercial warranty |
Seller 5 years
|
Legal warranty |
See terms & conditions
|
|
Safety Information |
Responsible person |
TB EC REP EUROPEAN SL |
Postal address |
Calle Marcelo Usera 60, LC, Madrid, Spain | |
Electronic Address |
EUREG@TBVAT.COM |
See all GMKtec products
Product referenced on 6 Nov 2025
Good product and satisfied with my purchase.
Easy to install and takes up little space.
Not easy to make a choice, but not disappointed.
In the same universe: nucbox
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