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

★★★★★ 4.5 32 reviews

$689.99
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Management number 216140404 Release Date 2026/04/19 List Price $276.00 Model Number 216140404
Category
  • 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 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

Brand GMKtec
Color Gunmetal Black
RAM Type DDR5 RAM
Model Name K12
Model Year 2025
Resolution 7680×4320
Style Name R7 H255
Screen Size 75
Aspect Ratio 16:9
Display Type External Display
Manufacturer Shenzhenshi Jimokekejiyouxiangongsi
Memory Speed 5600 MT/s
Model Number K12
Video Output HDMI 2.1, DisplayPort 1.4, USB4
BuiltIn Media GMKtec Nucbox K12 AMD Ryzen 7 H 255 Mini PC Computer, HDMI Cable, Power Supply & Cable, User Manual, VESA Mount with Screws
Cooling Method Air
Item Dimensions 7 x 7 x 5 inches
Keyboard Layout QWERTY
Power Plug Type Type B - 3 pin (North American)
Processor Brand AMD
Processor Count 8
Processor Speed 4.9 GHz
Total Usb Ports 6
Video Processor AMD
CPU Model Number AMD Ryzen 7 H 255
Operating System Windows 11 Pro
Processor Series AMD Ryzen 7
Processor Socket TSMC 4nm FinFET
Graphics Card Ram 32 GB
Graphics Ram Type VRAM
Native Resolution 7680×4320
Power Consumption 54 Watts
Compatible Devices Headphone, Keyboard, Monitor, Mouse, Television
Hardware Interface 3.5mm Audio, 802.11 ac/b/g/n, Bluetooth 5, Ethernet, HDMI, PCIE x 16, USB Type C
Memory Clock Speed 5600 MHz
Additional Features Dual Large Cooling Quiet Fans with RGB Lighting. (Able to turn off the lighting with Fan Mode button)., Dual NIC 2.5GbE Ethernet, Dual 3.5mm CTIA Ports (Front and Rear), GAMING PC using AMD Radeon 780M iGPU, Oculink Port (Rear Port), HDMI 2.1, DP Quad Display 4K/8K Video Ports, Triple M.2 2280 Slot Expansion. Each Slot 8TB Max. (Total 24TB)
Hard Disk Interface PCIE x 16
Wireless Technology Bluetooth, Wi-Fi
Graphics Coprocessor AMD Radeon 780M 2600 MHz
Graphics Description Integrated
HumanInterface Input Buttons, Keyboard, Microphone, Mouse
RAM Memory Installed 32 GB
Warranty Description 1 year warranty
Wireless Compability 2.4 GHz Radio Frequency, 5 GHz Radio Frequency, 5.8 GHz Radio Frequency, 802.11ax, Bluetooth
Hard Disk Description PCIe 4.0 M.2 2280 SSD Triple Slots Max.24TB
RAM Memory Technology DDR5 5600MT/S
Video Output Interface DisplayPort, HDMI, Type-C, USB4
Connectivity Technology Bluetooth, Ethernet, HDMI, USB, Wi-Fi
Graphics Card Interface Integrated
Memory Storage Capacity 32 GB
Ram Memory Maximum Size 96 GB
Specific Uses For Product Everyday Use, Gaming, Video Editing
Display Resolution Maximum 7680x4320
Total Number of HDMI Ports 1
Cache Memory Installed Size 32 GB
Number of Component Outputs 4
Wireless Network Technology Bluetooth, Wi-Fi
Personal Computer Design Type Mini PC

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4.5 out of 5
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