Description
GMKtec NucBox K12 Mini PC
The GMKtec NucBox K12 is a high-performance gaming mini PC powered by the AMD Ryzen 7 H 255 processor (upgraded from the 8745HS), making it a perfect choice for gamers, content creators, and professionals who need powerful computing in a compact form factor. With exceptional hardware, advanced cooling, and versatile connectivity, this mini desktop balances performance, expandability, and portability.
Key Features
Powerful Ryzen 7 H 255 Processor
The NucBox K12 is equipped with the AMD Ryzen 7 H 255, part of the Hawk Point family, delivering 8 cores and 16 threads with speeds up to 4.9GHz. Built on the Zen 4 architecture, it offers major improvements in efficiency and performance, featuring AVX512 support, larger cache, and better data handling. This makes it ideal for gaming, 3D rendering, and heavy multitasking.
Advanced Radeon 780M Graphics
Integrated with the AMD Radeon 780M GPU (12 CUs, 768 shaders, up to 2600MHz), the K12 handles modern games, creative workloads, and multiple 8K displays with ease. Thanks to RDNA 3 graphics architecture and FSR support, you can enjoy smooth frame rates and crisp visuals. Hardware encoding and decoding for AV1, HEVC, and AVC formats make it perfect for streaming, editing, and high-quality media playback.
Massive Memory & Storage Expansion
The NucBox K12 comes pre-installed with 64GB DDR5 5600MHz RAM (Dual Channel 2×32GB) and a fast 1TB PCIe 4.0 SSD, providing lightning-fast performance for both gaming and professional tasks.
For storage expansion, it features three M.2 2280 slots, each supporting up to 8TB SSD, allowing up to 24TB total capacity—ideal for creators who need massive storage space for files and projects.
Quad 4K/8K Display Support
Supporting up to four simultaneous displays, the K12 delivers incredible flexibility for multitasking and entertainment. It includes HDMI 2.1 (8K@60Hz), DisplayPort 1.4 (4K@60Hz), and USB Type-C (PD3.0/DP1.4/DATA) ports, enabling an immersive and seamless viewing experience for gamers, editors, and professionals working with multiple screens.
Oculink Port for eGPU Expansion
Designed for enthusiasts, the Oculink port provides PCIe x4 bandwidth, outperforming traditional Thunderbolt connections with higher data throughput and lower latency. This feature allows users to connect an external GPU (eGPU), boosting graphics performance for high-end gaming and rendering without sacrificing the compact design.
Next-Gen Connectivity
With Dual 2.5Gbps Ethernet LAN ports, WiFi 6E, and Bluetooth 5.2, the NucBox K12 ensures ultra-fast and stable connectivity. Whether you’re gaming online, transferring large files, or connecting multiple wireless peripherals, this mini PC keeps your workflow and entertainment smooth and uninterrupted.
Efficient Cooling with RGB Lighting
The NucBox K12 features a triple cooling fan system, including dual turbo CPU fans and a dedicated SSD/RAM fan, ensuring optimal performance even under heavy loads. Operating at just 35dB in Silent Mode, it remains whisper-quiet during long sessions. The RGB lighting system with 13 modes adds a customizable and aesthetic touch to your setup.
Compact Yet Versatile Design
Despite its small size, this mini gaming PC offers incredible power and expandability. Measuring small enough to fit in the palm of your hand, it’s perfect for space-saving setups, home offices, gaming stations, or portable creative workstations. Its sturdy build and elegant design make it both practical and visually appealing.
What’s in the Box
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GMKtec NucBox K12 Mini PC
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Power Adapter
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HDMI Cable
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VESA Mount Bracket
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User Manual
Price : GMKtec NucBox K12 Mini PC is priced as NRP 84,000 in Nepal.





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