Gmktec K12 Gaming Mini PC Oculink AMD Ryzen 7 H 255 (Upgraded 8745HS) 32GB DDR5 512GB SSD, Desktop Computer Radeon 780M Graphics, 3X M.2 2280 Storage Expansion, Dual NIC 2.5G, HDMI 2.1, USB4

Gmktec K12 Gaming Mini PC Oculink AMD Ryzen 7 H 255 (Upgraded 8745HS) 32GB DDR5 512GB SSD, Desktop Computer Radeon 780M Graphics, 3X M.2 2280 Storage Expansion, Dual NIC 2.5G, HDMI 2.1, USB4

Brand: GMKtec
3.9
A$725.55 - A$838.95
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  • RYZEN 7 H 255 CPU - The Ryzen 7 H 255 is a chip from the Hawk Point family and is an upgraded version of the older Ryzen 7 8745H and has 8 cores (16 threads thanks to SMT support) that run at up to 4.9 GHz, together with the powerful Radeon 780M iGPU. Unlike Zen 3, Zen 4 offers AVX512 support along with other improvements such as larger caches/registers/buffers across the board.
  • GAMING PC - The Radeon 780M (12 CUs / 768 shaders, up to 2,600 MHz) can drive multiple displays simultaneously with a resolution of up to 8K. Hardware encoding and hardware decoding of the most common video codecs (AV1, AVC, HEVC) is also no problem; playing the latest games on FSR settings without issues.
  • 32GB DDR5 RAM + 512GB SSD - The K12 mini computer is equipped with Dual 16GB (Total 32GB) SO-DIMM DDR5 5600MHz memory sticks. 512GB PCIE 4.0 SSD Drive with 3x M.2 2280 Expansion slots. Each slot capable of reading up to 8TB. (24TB MAX)
  • QUAD SCREEN 4K DISPLAY SUPPORT - K12 AI Mini PC support 4-screen 4K/8K output via HDMI 2.1 (8K@60Hz), DisplayPort 1.4 (4K@60Hz), and USB Type-C Transfer speed (supporting PD3.0/DP1.4/DATA). Ideal for gaming, video editing, and multitasking, it provides expansive and crisp multi-display support.
  • OCULINK PORT - The Oculink port on the rear interface enables higher bandwidth capabilities, better frame rates and lower lag. The standard also operates at PCIe x4 speeds, compared to Thunderbolt's x3. Gamers and content creators can benefit from Oculink's higher bandwidth, resulting in better performance and lower lag for eGPU setups
  • DUAL NIC FAST 2.5GBE + WIFI 6E + BT 5.2 - Dual Ethernet 2.5GbE LAN port design provides more applications, such as firewall, multichannel aggregation, soft routing, file storage server. Built-in WIFI 6E / Bluetooth 5.2 is more stable and efficient to connect multiple wireless devices such as projector, printer, monitor, speakers and etc.
  • DUAL COOLING FANS WITH LIGHTING - Turbo CPU fan + a massive DDR5/SSD cooling fan deliver silent, ultra-efficient cooling (just 35dB in Quiet Mode!), while the advanced heatpipes and 360° airflow keeps your Ryzen Mini PC frosty under heavy loads. Plus, 13 dazzling RGB lighting modes let you personalize your rig’s vibe.
  • GMKtec Warranty- GMKtec offers a 1-year limited warranty for each mini PC, starting from the date of the purchase. All defects due to design and workmanship are covered. With a professional after sales team always ready to attend to your needs, you can simply relax and enjoy your mini PC

Product Description

GMKtec K12 AMD Ryzen 7 H 255 (Turbo 4.9GHz, 8C/16T) 32GB DDR5+512GB

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

GMKtec K12 AMD Ryzen 7 H 255

Merchant video

Upgraded Model with Oculink Port, Larger Cooling Fans and Quad Display Support!

GMKtec K12 AMD Ryzen 7 H 255 Specification

CPU AMD Ryzen 7 H 255 (8C/16T, Up to 4.9GHz, L3 16MB Cache, TDP35~70W)
GPU AMD Radeon 780M (12Core 2600 MHz)
RAM 32GB Dual Channel (16GB*2) DDR5 5600 MT/S
Storage 512GB PCIe 4.0 3*M.2 2280 SSD NVME
Storage Expansion Triple M.2 SSD 2280 Slots. MAX (2* PCIE4.0x2/ 1* PCIE4.0x4) 8TB*3=24TB
Wireless LAN Dual 2.5G LAN (RJ45) | WIFI 6E BT5.2
Video output Quad Display Output, HDMI 2.1 (8K@120HZ), DP1.4 (8K@120HZ), Type-C (PD/DP/Data)*1, USB4.0*1
Other Functions 13 Mode RGB Fan Lighting Button, Wake ON LAN, Auto Power ON, Performance Settings, Oculink Port on the Rear Interface, 3.5mm audio port on the rear interface
Interface 2* 3.5mm CTIA Port; 1*Power Mode Button; 1*Fan Light Mode Button; 1* USB 4.0 Port;1*Type-C (PD/DP/Data)；1* HDMI 2.1 Port; 1* DP1.4 Port; 3* USB 3.2 Gen2 (10Gbps) Port; 2*USB2.0; 2* RJ45 (2.5G LAN) Port
Power Adapter DC IN: 19V-6.32A 120W Certification | Input: 100-240V AC, 50/60Hz , Output: 19V/6.32A
Operating Environment -10°C--45°C，30%--85% Humidity
Storage Environment -20°C--60°C，10%--90% Humidity
Cooling Method VC Cooling Design for CPU with Large Fans + DDR/SSD Cooling Fan with Lighting
Package Contents 1 x GMKtec Nucbox K12 AMD Ryzen 7 H 255 Mini PC, 1 x Power Adapter, 1 x HDMI Cable, 1 x User Manual, 1 x VESA Mount with Screws
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.

K12 Video Gameplay Performance

Merchant video

GMKtec K12 AMD Ryzen 7 H 255 Excellent Gameplay Performance!


Witness the raw power of the GMKtec K12 mini PC! This video tests its AMD Ryzen 7 H 255 processor in Baldur’s Gate 3 and Borderlands 3. See how its integrated 780M iGPU performs as a standalone system, and then watch the massive performance leap when its OCuLink port connects to a Radeon RX 7600 XT eGPU (Not included). We compare results against similar mini PCs, showcasing how the K12’s superior 65W sustained TDP and robust cooling deliver unbeatable performance.

K12 Mini PC Package Contents

  • Style: K12 H 255
  • Screen Resolution: 7680×4320
  • Graphics Coprocessor: AMD Radeon 780M 2600 MHz
  • Hard Drive Rotational Speed: 7200 RPM
  • Chipset Brand: AMD
  • Wireless Type: 2.4 GHz Radio Frequency, 5 GHz Radio Frequency, 5.8 GHz Radio Frequency, 802.11ax, Bluetooth
  • Graphics Card Ram Size: 32 GB
  • Operating System: OS PRO
  • Brand: GMKtec
  • RAM: DDR5 5600MT/S
  • Processor brand: AMD
  • Package Dimensions: 35.5 x 20.6 x 9.2 cm; 2.16 kg
  • Item Model Number: K12
  • Number of USB 20 Ports: 2
  • Max Screen Resolution: 7680×4320 Pixels
  • Number of processors: 8
  • Hard Drive: 512 GB PCIe 4.0 M.2 2280 SSD Triple Slots Max.24TB
  • Standing screen display size: 75 Inches
  • Processor: 4.9 GHz amd_ryzen_7
  • Computer Memory Type: DDR5 RAM
  • Series: K12
  • Number of USB 30 Ports: 3
  • Flash Memory Size: 32 GB
  • Memory Speed: 5600 MHz
  • Card Description: Integrated
  • Hard Drive Interface: PCIE x 16
  • Size Name: 32GB DDR5 5600MHz + 512GB SSD
A$725.55 - A$838.95
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