Mini Computers

GMKtec K12 Mini PC (Ryzen 7 H255/32GB DDR5/1TB SSD/W11 Pro)

Key features:

  • AMD Ryzen 7 H255
  • AMD Radeon 780M
  • Processor Ryzen 7 H255
  • 16 GB RAM and 1 TB SSD
See full description
  • Connections Bluetooth, Ethernet, HDMI, USB 2.0, USB 3.2, USB 4.0, WiFi
  • See all

Description

Description

MINI PC GMKtec K12

The GMKtec K12 Mini PC delivers powerful performance with the AMD Ryzen 7 H255 processor. It features:

  • Octa-core and sixteen threads with speeds up to 4.9 GHz.
  • 16 MB cache for instant data access.
  • Energy consumption TDP 35-54 Watt.

With 16 GB RAM and 1 TB SSD, the device is capable of handling multiple tasks simultaneously, ideal for demanding applications. It supports Windows 11 Pro and is compatible with Linux.

Integrated AMD Radeon 780M graphics: Delivers performance comparable to dedicated graphics cards, with a frequency of 2600 MHz, suitable for gaming and video editing.

Visual experience: Supports up to four displays with 8K resolution via HDMI 2.1, DisplayPort 1.4, and USB 4.0.

Connection ports:

  • 2 USB-C ports, 5 USB-A ports, HDMI 2.1, DisplayPort.
  • 2 Ethernet 2.5G ports for fast data transfer.

Its design allows easy memory and disk expansion, supporting up to 24TB through multiple SSDs.

Thermal dissipation is achieved through two fans, ensuring stable operation at a 70W TDP load.

Included:

  • Mini PC
  • Power supply with cable
  • HDMI cable
  • VESA mount
  • User manual

Manufacturer: GMKTec

Model: K12

Dimensions: 154 x 115 x 73.6 mm

Weight: 926 g

Processor: AMD Ryzen 7 H255, with base clock 3.7 GHz and maximum 4.9 GHz.

The GMKtec K12 is an advanced solution for work and entertainment in a mini computer.

The GMKtec K12 Mini PC is powered by a custom AMD Ryzen 7 H255 processor, which outperforms the Ryzen 7 8745HS model. The eight-core, sixteen-thread unit, clocked at 4.9 GHz and with 16 MB cache, easily handles multitasking and high-intensity computing workloads. With a TDP range of 35-54 Watts, it achieves the perfect balance between performance and energy efficiency. The device comes with Windows 11 Pro pre-installed. It is also compatible with Linux.

Impressive performance with Ryzen 7 H255

The AMD Ryzen 7 H255 processor provides high computing power, with performance surpassing the Ryzen 7 8745HS, 7840HS, and 6800H models. Eight cores and sixteen threads, clocked up to 4.9 GHz and 16 MB cache, guarantee smooth operation of demanding applications and multitasking without performance drops. The chip is manufactured with TSMC's 4 nm lithography and, with a TDP of 54 Watts, the computer offers stable operation even under heavy load.

Integrated graphics with the power of a dedicated card

The powerful AMD Radeon 780M chip provides smooth operation for games and graphics programs, offering performance comparable to dedicated GPU cards. The GPU clock frequency is 2600 MHz and the RDNA 3 architecture used guarantees high frame rates – achieving up to 182 FPS in e-sports games and 127 FPS in productions with more advanced graphics. The integrated chip also excels in video editing, 3D design, and high-definition multimedia, making the K12 a versatile computer for work and entertainment.

8K Image on Four Screens

The device supports up to four simultaneous displays with resolutions up to 8K, offering an exceptional visual experience and a large workspace. It features ports such as USB 4.0, USB-C, DisplayPort 1.4, and HDMI 2.1, allowing you to connect a variety of devices—from monitors and graphic tablets to TVs and projectors. It is ideal for creators, analysts, and professionals who need a powerful mini PC for multi-display work and top-quality image editing.

Everything you need for work and entertainment

Create a fully functional workstation for work, gaming, and multimedia. You will have at your disposal 2 USB-C ports, 5 USB-A ports, HDMI 2.1, DisplayPort, 2 LAN 2.5G ports, a CTIA 3.5 mm audio jack, and an OCuLink port (PCIe Gen4 x4) for connecting an external graphics card. This equipment ensures full compatibility with modern devices and guarantees comfortable use 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 increasing the computer's capabilities in gaming, rendering, and graphic tasks. Such a solution enables you to achieve performance comparable to a full-sized PC while maintaining the compact size of the device. Please note, however, that the OCuLink port does not support hot-plug functionality, so connecting or disconnecting the card should be done with the computer turned off.

Stable connection in every situation

Equipped with 2 Ethernet 2.5G ports, which provide fast and stable data transfer – up to 2500 MB/s. Such a solution guarantees reliability in bandwidth-intensive applications – from office tasks to large file transfers, media servers, or surveillance systems. The computer maintains stable transmission speed and high responsiveness, ensuring smooth operation under all conditions. Using Wi-Fi 6E + Bluetooth 5.2 technology, the GMKtec K12 offers fast and stable connections in all situations. The Wi-Fi standard provides speeds of up to 2,500 Mbps, 37% higher than Wi-Fi 6, which translates to lightning-fast data transfer and low latency for online gaming. 

Easy memory and disk expansion

The design of the GMKtec K12 has been developed for upgrade simplicity and maximum flexibility. With easy access to the components, you can expand your computer’s capabilities within minutes by installing up to three M.2 2280 PCIe 4.0 SSDs with a total capacity of up to 24TB (maximum 8TB per slot). In addition, two DDR5 5600 MHz SO-DIMM slots support up to 128GB of RAM (maximum 64GB per slot), allowing you to customize your configuration for the most demanding applications – from working with large files to advanced graphics and computing projects.

Advanced Solutions

The heat dissipation system combines two fans with a copper base to ensure stable operation for up to 72 hours under a 70 W TDP load. The convection airflow design increases cooling performance by up to 200% compared to classic PC Towers, while maintaining a chassis that is just 1/50th of their size. The intelligent system fans and carefully distributed airflow maintain optimal component temperatures, while the rear RGB lighting adds a modern, impressive touch. 

Depending on the task at hand, the GMKtec K12 allows you to seamlessly switch between three operating modes, offering the perfect balance between quietness, temperature, and performance. In Quiet mode (35-40 W TDP), the computer operates almost silently, Balanced mode (54-60 W TDP) provides stable power for everyday tasks, and Performance mode (65-70 W TDP) fully utilizes the processor's capabilities for gaming and demanding system applications.

Manufacturer

See full description

Specifications

Specifications

Processor

Manufacturer
AMD
Family
Ryzen 7
Model
H255
Generation
Braswell
Processor
Ryzen 7 H255

RAM memory

Size
32 GB
Type
DDR5

Hard Drive

Type
SSD
Capacity
1000 GB

Software

Operating System
Windows 11 Pro

Connectivity

Connections
Bluetooth, Ethernet, HDMI, USB 2.0, USB 3.2, USB 4.0, WiFi
Card Reader
No
HDMI 2.1
Yes
Wi-Fi Generation
Wi‑Fi 6E

Extra Features

Processor Type
-
NPU Support
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (2)

Reviews

  1. 1
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Άρης Σ.

    Verified purchase

    I bought it a month ago. When it was cold and you pressed the power button, the fans would turn on, but it wouldn't boot. You had to press the power button until it turned off and on the next press it would start normally.

    I returned it for inspection and it was replaced. The new one I received wouldn't even turn on.

    I'm returning it and requesting a refund. I don't think it's worth bothering with it any further.

    Translated from Greek ·
    Did you find this review helpful?
  • The best PC I've had, it outperforms the desktops (towers) I have with Ryzen 5 + Ryzen 7 with 32 and 6GB RAM. It doesn't flinch at anything. It's worth its money.

    Translated from Greek ·
    Did you find this review helpful?
  • I bought it a month ago. When it was cold and you pressed the power button, the fans would turn on, but it wouldn't boot. You had to press the power button until it turned off and on the next press it would start normally.

    I returned it for inspection and it was replaced. The new one I received wouldn't even turn on.

    I'm returning it and requesting a refund. I don't think it's worth bothering with it any further.

    Translated from Greek ·
    0
  • The best PC I've had, it outperforms the desktops (towers) I have with Ryzen 5 + Ryzen 7 with 32 and 6GB RAM. It doesn't flinch at anything. It's worth its money.

    Translated from Greek ·
    0
  • See all

Description & Specifications

MINI PC GMKtec K12

The GMKtec K12 Mini PC delivers powerful performance with the AMD Ryzen 7 H255 processor. It features:

  • Octa-core and sixteen threads with speeds up to 4.9 GHz.
  • 16 MB cache for instant data access.
  • Energy consumption TDP 35-54 Watt.

With 16 GB RAM and 1 TB SSD, the device is capable of handling multiple tasks simultaneously, ideal for demanding applications. It supports Windows 11 Pro and is compatible with Linux.

Integrated AMD Radeon 780M graphics: Delivers performance comparable to dedicated graphics cards, with a frequency of 2600 MHz, suitable for gaming and video editing.

Visual experience: Supports up to four displays with 8K resolution via HDMI 2.1, DisplayPort 1.4, and USB 4.0.

Connection ports:

  • 2 USB-C ports, 5 USB-A ports, HDMI 2.1, DisplayPort.
  • 2 Ethernet 2.5G ports for fast data transfer.

Its design allows easy memory and disk expansion, supporting up to 24TB through multiple SSDs.

Thermal dissipation is achieved through two fans, ensuring stable operation at a 70W TDP load.

Included:

  • Mini PC
  • Power supply with cable
  • HDMI cable
  • VESA mount
  • User manual

Manufacturer: GMKTec

Model: K12

Dimensions: 154 x 115 x 73.6 mm

Weight: 926 g

Processor: AMD Ryzen 7 H255, with base clock 3.7 GHz and maximum 4.9 GHz.

The GMKtec K12 is an advanced solution for work and entertainment in a mini computer.

The GMKtec K12 Mini PC is powered by a custom AMD Ryzen 7 H255 processor, which outperforms the Ryzen 7 8745HS model. The eight-core, sixteen-thread unit, clocked at 4.9 GHz and with 16 MB cache, easily handles multitasking and high-intensity computing workloads. With a TDP range of 35-54 Watts, it achieves the perfect balance between performance and energy efficiency. The device comes with Windows 11 Pro pre-installed. It is also compatible with Linux.

Impressive performance with Ryzen 7 H255

The AMD Ryzen 7 H255 processor provides high computing power, with performance surpassing the Ryzen 7 8745HS, 7840HS, and 6800H models. Eight cores and sixteen threads, clocked up to 4.9 GHz and 16 MB cache, guarantee smooth operation of demanding applications and multitasking without performance drops. The chip is manufactured with TSMC's 4 nm lithography and, with a TDP of 54 Watts, the computer offers stable operation even under heavy load.

Integrated graphics with the power of a dedicated card

The powerful AMD Radeon 780M chip provides smooth operation for games and graphics programs, offering performance comparable to dedicated GPU cards. The GPU clock frequency is 2600 MHz and the RDNA 3 architecture used guarantees high frame rates – achieving up to 182 FPS in e-sports games and 127 FPS in productions with more advanced graphics. The integrated chip also excels in video editing, 3D design, and high-definition multimedia, making the K12 a versatile computer for work and entertainment.

8K Image on Four Screens

The device supports up to four simultaneous displays with resolutions up to 8K, offering an exceptional visual experience and a large workspace. It features ports such as USB 4.0, USB-C, DisplayPort 1.4, and HDMI 2.1, allowing you to connect a variety of devices—from monitors and graphic tablets to TVs and projectors. It is ideal for creators, analysts, and professionals who need a powerful mini PC for multi-display work and top-quality image editing.

Everything you need for work and entertainment

Create a fully functional workstation for work, gaming, and multimedia. You will have at your disposal 2 USB-C ports, 5 USB-A ports, HDMI 2.1, DisplayPort, 2 LAN 2.5G ports, a CTIA 3.5 mm audio jack, and an OCuLink port (PCIe Gen4 x4) for connecting an external graphics card. This equipment ensures full compatibility with modern devices and guarantees comfortable use 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 increasing the computer's capabilities in gaming, rendering, and graphic tasks. Such a solution enables you to achieve performance comparable to a full-sized PC while maintaining the compact size of the device. Please note, however, that the OCuLink port does not support hot-plug functionality, so connecting or disconnecting the card should be done with the computer turned off.

Stable connection in every situation

Equipped with 2 Ethernet 2.5G ports, which provide fast and stable data transfer – up to 2500 MB/s. Such a solution guarantees reliability in bandwidth-intensive applications – from office tasks to large file transfers, media servers, or surveillance systems. The computer maintains stable transmission speed and high responsiveness, ensuring smooth operation under all conditions. Using Wi-Fi 6E + Bluetooth 5.2 technology, the GMKtec K12 offers fast and stable connections in all situations. The Wi-Fi standard provides speeds of up to 2,500 Mbps, 37% higher than Wi-Fi 6, which translates to lightning-fast data transfer and low latency for online gaming. 

Easy memory and disk expansion

The design of the GMKtec K12 has been developed for upgrade simplicity and maximum flexibility. With easy access to the components, you can expand your computer’s capabilities within minutes by installing up to three M.2 2280 PCIe 4.0 SSDs with a total capacity of up to 24TB (maximum 8TB per slot). In addition, two DDR5 5600 MHz SO-DIMM slots support up to 128GB of RAM (maximum 64GB per slot), allowing you to customize your configuration for the most demanding applications – from working with large files to advanced graphics and computing projects.

Advanced Solutions

The heat dissipation system combines two fans with a copper base to ensure stable operation for up to 72 hours under a 70 W TDP load. The convection airflow design increases cooling performance by up to 200% compared to classic PC Towers, while maintaining a chassis that is just 1/50th of their size. The intelligent system fans and carefully distributed airflow maintain optimal component temperatures, while the rear RGB lighting adds a modern, impressive touch. 

Depending on the task at hand, the GMKtec K12 allows you to seamlessly switch between three operating modes, offering the perfect balance between quietness, temperature, and performance. In Quiet mode (35-40 W TDP), the computer operates almost silently, Balanced mode (54-60 W TDP) provides stable power for everyday tasks, and Performance mode (65-70 W TDP) fully utilizes the processor's capabilities for gaming and demanding system applications.

Manufacturer

Processor

Manufacturer
AMD
Family
Ryzen 7
Model
H255
Generation
Braswell
Processor
Ryzen 7 H255

RAM memory

Size
32 GB
Type
DDR5

Hard Drive

Type
SSD
Capacity
1000 GB

Software

Operating System
Windows 11 Pro

Connectivity

Connections
Bluetooth, Ethernet, HDMI, USB 2.0, USB 3.2, USB 4.0, WiFi
Card Reader
No
HDMI 2.1
Yes
Wi-Fi Generation
Wi‑Fi 6E

Extra Features

Processor Type
-
NPU Support
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (2)

  1. 1
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1
Review this product
  • Άρης Σ.

    Verified purchase

    I bought it a month ago. When it was cold and you pressed the power button, the fans would turn on, but it wouldn't boot. You had to press the power button until it turned off and on the next press it would start normally.

    I returned it for inspection and it was replaced. The new one I received wouldn't even turn on.

    I'm returning it and requesting a refund. I don't think it's worth bothering with it any further.

    Translated from Greek ·
    Did you find this review helpful?
  • The best PC I've had, it outperforms the desktops (towers) I have with Ryzen 5 + Ryzen 7 with 32 and 6GB RAM. It doesn't flinch at anything. It's worth its money.

    Translated from Greek ·
    Did you find this review helpful?
  • I bought it a month ago. When it was cold and you pressed the power button, the fans would turn on, but it wouldn't boot. You had to press the power button until it turned off and on the next press it would start normally.

    I returned it for inspection and it was replaced. The new one I received wouldn't even turn on.

    I'm returning it and requesting a refund. I don't think it's worth bothering with it any further.

    Translated from Greek ·
    0
  • The best PC I've had, it outperforms the desktops (towers) I have with Ryzen 5 + Ryzen 7 with 32 and 6GB RAM. It doesn't flinch at anything. It's worth its money.

    Translated from Greek ·
    0
  • See all
1.097,90 €
14,00 €   shipping cost