GMKtec - K12 Gaming Mini PC Oculink AMD Ryzen 7 H 255 (Upgraded 8745HS) 32GB DDR5 RAM 512GB SSD, Desktop Computer Radeon 7 - Black
About this product
GMKtec K12 mini PC powered by AMD Ryzen 7 H255 (8 cores,16 threads,up to 4.9GHz) with Radeon 780M iGPU, featuring 32GB DDR5 5600MHz RAM and 512GB PCIe4.0 SSD plus 3 M.2 2280 expandable slots (max 24TB). It supports quad 4K/8K multi-display output via HDMI2.1,DP1.4 and USB-C, equipped with OCuLink port for eGPU, dual 2.5GbE Ethernet, WiFi6E and BT5.2. Dual cooling fans with heatpipes deliver efficient quiet cooling with RGB lighting, ideal for gaming, content creation and multitasking. It comes with 1-year limited manufacturer warranty.
Highlights
Features
Powered by AMD Ryzen 7 H255 Processor
This Hawk Point family chip upgrades the Ryzen 7 8745H, featuring 8 cores and 16 threads with a max boost clock up to 4.9GHz. Built on Zen 4 architecture, it supports AVX512 and upgraded cache for smoother computing, paired with high-performance Radeon 780M integrated graphics.
32GB DDR5 RAM & 512GB PCIe 4.0 SSD with Massive Expandabilit
Comes with 32GB (2×16GB) DDR5 5600MHz SO-DIMM memory and a 512GB PCIe 4.0 SSD. It has 3 M.2 2280 expansion slots, each supporting up to 8TB storage for a maximum 24TB total capacity to meet your large file storage demands.
Quad 4K/8K Multi-Display Output & OCuLink Port
Supports 4-screen 4K/8K output via HDMI 2.1, DP 1.4 and USB-C (PD3.0/DP1.4/Data). The rear OCuLink port runs at PCIe x4 bandwidth for low-latency eGPU connection, ideal for gaming, video editing and heavy multitasking.
Dual 2.5GbE LAN, WiFi 6E & BT 5.2
Dual 2.5G Ethernet ports support link aggregation, soft routing and server deployment. Integrated WiFi 6E and Bluetooth 5.2 deliver stable, fast wireless connections to monitors, speakers, printers and other peripherals.
Efficient Dual-Fan Cooling with RGB Lighting & 1-Year Warran
Dual cooling fans plus heatpipe structure maintain quiet operation at only 35dB in quiet mode under heavy loads. 13 customizable RGB lighting modes are available. GMKtec provides a 1-year limited warranty covering manufacturing defects with reliable after-sales support.
Specifications
- Processor ModelAMD Ryzen 7 8000 SeriesStorage TypeSSDTotal Storage Capacity512 gigabytesSystem Memory (RAM)32 gigabytesGraphics TypeIntegrated
Reviews
This product doesn't have any reviews yet.
Compare similar products

GMKtec K12 mini PC powered by AMD Ryzen 7 H255 (8 cores,16 threads,up to 4.9GHz) with Radeon 780M iGPU, featuring 32GB DDR5 5600MHz RAM and 512GB PCIe4.0 SSD plus 3 M.2 2280 expandable slots (max 24TB). It supports quad 4K/8K multi-display output via HDMI2.1,DP1.4 and USB-C, equipped with OCuLink port for eGPU, dual 2.5GbE Ethernet, WiFi6E and BT5.2. Dual cooling fans with heatpipes deliver efficient quiet cooling with RGB lighting, ideal for gaming, content creation and multitasking. It comes with 1-year limited manufacturer warranty.

AMD Ryzen 9 8945HS Processor - GMKtec K11 mini pc equipped with the AMD Ryzen 9 8945HS CPU, featuring 8 cores, 16 threads, and boost up to 5.4 GHz. It offers superior multitasking performance for demanding tasks like gaming and content creation, with energy-efficient power management at 35W TDP (upgradable to 70W). 32GB DDR5 + 1TB PCIe 4.0 SSD - GMKtec K11 mini computers come with 32GB dual-channel DDR5 RAM at 5600 MT/s, expandable to 128GB, and 1TB PCIe 4.0 M.2 2280 SSD with dual PCIe Gen4 x4 SSD slots supporting expansion up to 8TB for lightning-fast read/write speeds. Oculink Port - The Oculink port delivers high bandwidth, improved frame rates and lower lag running at PCIe x4 speeds, ideal for gamers and content creators building eGPU setups. 4-Screen 4K Display Support - K11 mini pc supports simultaneous 4K@60Hz output across 4 screens via HDMI 2.1, DisplayPort 2.1 and USB4 (up to 40Gb/s), perfect for multitasking, professional work, gaming and entertainment. Dual NIC Intel i226V 2.5Gbps + WiFi 6 + BT 5.2 - Dual Intel 2.5G LAN ports support firewall, link aggregation, soft routing and storage server use; WiFi 6 delivers fast network for browsing, streaming and gaming, while Bluetooth 5.2 enables stable connections to multiple wireless peripherals. Upgraded Dual Cooling Fans - Hyper Ice Chamber 2.0 cooling system adopts dual large fans with 360° airflow and copper base, keeping noise as low as 35dB under Quiet mode. Three Performance Modes & Updated UEFI BIOS - The K11 Mini PC features updated BIOS with three adjustable power modes (Quiet 35W, Balance 54W, Performance 65W), plus configurable VRAM allocation, Auto Power On and Wake-on-LAN functions. GMKtec Warranty - GMKtec provides a 1-year limited warranty starting from purchase date, covering defects from design and workmanship, with dedicated after-sales support.

GEEKOM Mini PC A8 Max With AMD Ryzen 7 8745HS 16GB DDR5|1TB SSD Dual LAN, Radeon 780M Mini PC Windows 11 Pro

GMKtec Nucbox M6 Ultra mini PC powered by AMD Ryzen 5 7640HS 6‑core 12‑thread processor up to 5.0GHz with Radeon 760M graphics, features 16GB DDR5 RAM, 1TB PCIe SSD, dual‑slot expandable memory and storage, dual 2.5G Ethernet ports, triple‑display output with USB4 8K@60Hz, WiFi 6E & Bluetooth 5.2, rich I/O ports and dual‑fan cooling, includes VESA mount, HDMI cable and power adapter with 1‑year limited warranty.
| Pros for GMKtec - K12 Gaming Mini PC Oculink AMD Ryzen 7 H 255 (Upgraded 8745HS) 32GB DDR5 RAM 512GB SSD, Desktop Computer Radeon 7 - Black | |||
|---|---|---|---|
| There were no pros for this product— | There were no pros for this product— | Overall Performance, Connectivity, Heat Dissipation, Noise Level, Processor Speed | There were no pros for this product— |
Specs
Be the first to ask a question.
We’ll try to get your question answered within 24 hours by a Best Buy customer or brand representative.






















































