GMKtec K12 Ryzen 7 H 255, 32GB RAM, 1TB SSD, Win11 Pro Mini PC
MINI PC GMKtec K12 Ryzen 7 H 255 32GB RAM + 1TB SSD WIN 11 Pro
The GMKtec K12 Mini PC is powered by a custom AMD Ryzen 7 H 255 processor, which outperforms the Ryzen 7 8745HS model. This octa-core, sixteen-thread unit, with a clock speed of up to 4.9 GHz and a 16 MB cache, handles multitasking and compute-intensive workloads with ease. With a TDP range of 35-54 watts, it achieves the perfect balance of performance and energy efficiency. The device comes with Windows 11 Pro pre-installed and is also compatible with Linux.
Impressive Performance with Ryzen 7 H 255
The high computing power is provided by the AMD Ryzen 7 H 255 processor, which surpasses the performance of the Ryzen 7 8745HS, 7840HS, and 6800H models. With eight cores and sixteen threads, a maximum clock speed of 4.9 GHz, and 16 MB cache, it ensures smooth operation of demanding applications and multitasking without performance drops. The chip is manufactured using TSMC’s 4 nm process, and with a TDP of 54 watts, the PC remains stable even under heavy load.
Integrated Graphics with Independent GPU Power
The powerful AMD Radeon 780M integrated chip delivers smooth gaming and graphics program operation, offering performance comparable to dedicated GPUs. The GPU has a clock frequency of 2600 MHz, and the RDNA 3 architecture ensures high frame rates—up to 182 FPS in popular esports games and 127 FPS in graphically advanced titles. This integrated chip is also well-suited for video editing, 3D design, and high-definition multimedia, making the K12 a versatile computer for both work and entertainment.
8K Display on Four Screens
The device supports up to four monitors simultaneously at resolutions up to 8K, delivering an exceptional visual experience and expansive workspace. Featuring ports such as USB 4.0, USB-C, DisplayPort 1.4, and HDMI 2.1, you can connect a variety of devices—from monitors and graphics tablets to TVs and projectors. This makes it ideal for creatives, analysts, and professionals who need a powerful mini PC for multi-screen work and superior image processing.
Everything You Need for Work and Entertainment
Create a fully functional workstation for productivity, gaming, and multimedia. The device offers 2 USB-C ports, 5 USB-A ports, HDMI 2.1, DisplayPort, 2 2.5G LAN ports, a CTIA 3.5mm audio jack, and an OCuLink (PCIe Gen4 x4) port for connecting an external graphics card. This ensures full compatibility with modern devices and guarantees comfort in the office, at home, or in the studio.
Support for External Graphics Cards
The OCuLink port allows you to connect an external graphics card, significantly boosting the computer’s capabilities for gaming, rendering, and graphics work. This solution provides performance comparable to full-size computers while maintaining the device’s compact size. Please note that the OCuLink port does not support hot-plug functionality; cards must be connected or disconnected with the computer powered off.
Stable Connections in Any Situation
The GMKtec K12 is equipped with two 2.5G Ethernet ports that provide fast and stable data transfer—up to 2500 MB/s. This ensures reliability for bandwidth-intensive applications, from office work and large file transfers to media servers and monitoring systems. The computer maintains consistent transmission speed and high responsiveness for smooth operation in all conditions. With Wi-Fi 6E and Bluetooth 5.2 technology, the GMKtec K12 ensures fast and reliable wireless connections. The new Wi-Fi standard offers speeds up to 2,500 Mbps, 37% higher than Wi-Fi 6, translating to ultra-fast data transfers and low latency for online gaming. Bluetooth 5.2 is 2.5 times faster than version 4.2, ensuring reliable connectivity with peripherals such as headphones, keyboards, and controllers.
Easy Memory and Storage Expansion
The GMKtec K12 is designed for easy upgrades and maximum flexibility. With simple access to components, you can upgrade your PC in moments, installing up to three M.2 2280 PCIe 4.0 SSDs for a total capacity of 24TB (maximum 8TB per slot). There are also two DDR5 5600 MHz SO-DIMM slots supporting up to 128 GB of RAM (maximum 64 GB per slot), letting you tailor configurations for the most demanding tasks, from working with large files to advanced graphics or computing projects.
Advanced Solutions
The heat dissipation system combines two fans with a copper base, ensuring stable operation for up to 72 hours at a 70W TDP load. The convection airflow design increases cooling efficiency by 200% compared to classic tower PCs, while the chassis is only 1/50th the size. Intelligent system fans and thoughtful airflow routing maintain optimal component temperatures, while RGB lighting adds a modern, eye-catching touch. Depending on your needs, the GMKtec K12 lets you switch seamlessly between three operating modes, offering the ideal balance of silence, temperature, and performance. In Quiet mode (35-40W TDP), the device runs nearly silently; Balanced (54-60W TDP) ensures stable performance for everyday tasks, and Performance mode (65-70W TDP) fully unleashes the processor’s power for gaming and resource-intensive applications.
Included:
Mini PCPower supply with cable
HDMI cable
VESA mount
Screws
User manual
| Manufacturer | GMKTec |
|---|---|
| Model | K12 |
| Dimensions | 154 × 115 × 73.6 mm |
| Housing material | Metal + plastic |
| Weight | 926 g |
| Processor | AMD Ryzen 7 H 255 |
| Base clocking | 3.7 GHz |
| Max. clocking | 4.9 GHz |
| Power consumption | 70 W |
| RAM type | DDR5 5600 |
| RAM capacity | 32 GB (DDR5, included, removable) |
| EMMC | No |
| SSD | M.2 2280 1 TB (included)2 × M.2 2280 expansion slots, each up to 8 TBTotal maximum capacity: 24 TB |
| 2.5 ''HDD/SSD support | No |
| TF card reader | No |
| Real-time clock start | Yes |
| BIOS support | Yes |
| TPM | TPM 2.0 support (software) |
| Video outputs | HDMI 2.1 ×1, DisplayPort 1.4 ×1, USB4.0 (Type-C, DP/PD/Data) ×2 |
| Status indicator | Power status LED (white) |
| Wi-Fi | Wi-Fi 6E |
| Interface type | PCIe |
| Bluetooth | Bluetooth 5.2 |
| Bluetooth interface | USB 2.0 |
| 3G | No |
| 4G | No |
| Ethernet | 2 × RJ45 (2.5G / 1G / 100M / 10M) |
| USB 2.0 | 2 × USB 2.0 |
| USB 3.2 | 3 × USB 3.2 |
| External memory expansion | No |
| Audio/video outputs | HDMI 2.1 ×1, DP 1.4 ×1, USB4.0 ×2 (DP/PD/Data), 3.5mm audio jack |
| Ethernet ports | RJ45 ×2 (2.5G) |
| Data transfer | Yes |
| Buttons | Power button |
| DC IN | Yes |
| Audio input/output | Jack 3.5 mm |
| Antennas | 2 × FPC (Wi-Fi + BT) |
| Operating system | Windows 11 Pro (installed), Linux support |
| Operating temperature | 0-40°C |
| Storage temperature | Not applicable |
| Humidity | Not applicable |
| Power supply | Input 100~240V 50/60HzOutput 19V/6.32A 120W,DC 5.5/2.5mm |
| IR Remote Control | No |
| VESA | Yes |
| Radio bands | Wi-Fi 2.4G / 5G / 6G / Bluetooth |
| Max. transmitting power | 20.5 dBm / 18.5 dBm / 7 dBm |