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GMKtec K12 Mini PC AMD Ryzen™ 7 H 255

$359.99

OCulink Port | 3× M.2 2280 PCIe 4.0 | 2× 2.5G LAN + Wi-Fi 6E + BT 5.2

US Orders: No Import Fees

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1-Year Warranty

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Barebone (No DDR & SSD & OS） 32GB RAM + 1TB SSD 64GB RAM + 1TB SSD

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GMKtec K12 Mini PC AMD Ryzen™ 7 H 255

$359.99

Parameter	Details
Model	GMKtec NUCBOX K12
CPU Model	AMD Ryzen™ 7 H 255
CPU	AMD Ryzen™ 200 Series Processor, 8 Cores, 16 Threads Zen 4 Architecture Base Frequency 3.8GHz, Max Boost up to 4.9GHz 8MB L2 Cache / 16MB L3 Cache
CPU Socket / Package	TSMC 4nm FinFET
GPU	AMD Radeon™ 780M Graphics 12 Cores, up to 2600MHz
Memory (RAM)	2 × DDR5 SO-DIMM Slots Dual-Channel 32GB (16GB × 2) standard configuration DDR5-5600 Memory Supports up to 96GB
Storage (ROM)	512GB / 1TB SSD options
Storage Expansion	3 × M.2 2280 PCIe 4.0 SSD Slots 1 × PCIe 4.0 ×4 slot + 2 × PCIe 4.0 ×2 slots Supports up to 24TB total storage
Graphics Output	Quad display output via HDMI 2.1 + DisplayPort 1.4 + USB4 + USB Type-C Supports simultaneous multi-display output
Network	Wi-Fi 6E (RZ616, up to 2.4Gbps) Bluetooth 5.2 Dual 2.5G Ethernet LAN (Realtek 8125BG)
Power	Built-in coin cell battery DC Power Adapter 19V / 6.32A, 120W
Front I/O	Audio: 1 × 3.5mm Combo Jack USB-C: 1 × USB 3.2 Gen2 Type-C (PD / DP / Data) USB-A: 2 × USB 3.2 Gen2 USB-A: 1 × USB 2.0 Power Button: 1 × Power Button with White LED Indicator Reset: 1 × Clear CMOS Button
Rear I/O	Audio: 1 × 3.5mm Combo Jack USB4: 1 × USB4.0 Full-Function Port HDMI: 1 × Standard HDMI 2.1 DisplayPort: 1 × DP 1.4 (DP++) OCulink: 1 × PCIe Gen4 ×4 OCulink Port USB-A: 1 × USB 3.2 Gen2 + 1 × USB 2.0 LAN: 2 × RJ45 2.5G Ethernet Power: 1 × DC IN (5.5 × 2.5mm)
RGB / Fan Control Button	1 × System Fan Control Button Supports lighting on/off control and multiple RGB lighting modes
OCulink Notice	The OCulink port does not support hot-plugging. Please connect or disconnect the cable only when the device is powered off.
Operating System	Windows 11 Pro
Language Support	14 Languages Supported (Default English): Simplified Chinese, Traditional Chinese, French, Dutch, Italian, Spanish, Korean, Japanese, German, Hebrew, Russian, Portuguese, Arabic
Chassis Dimensions	154 × 151 × 73.6 mm
Weight	Approx. 920 g
Color	Iron Gray
Working Temperature	0°C – 40°C
Warranty	1-Year Limited Warranty
Certifications	CCC, CE, FCC, RoHS, MIC, CEC, China Energy Label, UL Report
Packaging List	User Manual Warranty Card Power Adapter HDMI Cable VESA Mount Bracket

GMKtec NucBox K12

AMD Ryzen™ 7 H 255
The Ultimate Entertainment Multitasker

9 Premium Features

AMD Ryzen™ 7 H 255

8 Cores, 16 Threads，Max 4.9GHz

AMD Radeon™ 780M

RDNA 3 Architecture, 2600MH

Oculink Port

PCle Gen4 x4, Supports external RTX 4060 GPU

Dual 2.5G LAN

2500Mbps

Silent VC cooling

70w performance

Supports up to 24TB

2x M.2 2280 PCle 4.0x2 SSD
1x M.2 2280 PCle 4.0x4 SSD

WiFi 6 (2.4Gbps)

BT5.2

Quad Screens Display

Up to 8K@120Hz
HDMI 2.1 + DP 1.4+ USB 4+ Type-C

Dual DDR5 5600MHz

2*SO-DIMM MAX 128GB

Powerful Core New World of Play

Equipped with the AMD RyzenT 7 H 255 processor
featuring 8 cores and 16 threads based on the Zen 4 architecture
Base clock: 3.8GHz, Boost up to 4.9GHz, with a peak TDP of 70W.

AMD Radeon™ 780M

Equipped with 12 cores running at 2600 MHz, the AMD Radeon™ 780M GPU
delivers outstanding computing and graphics
performance. With a benchmark score of over 165,000 on Ludashi, it's ideal
for gaming, creative design, and otherpertormance-intensive tasks.

Cinebench Score: 6291

OCulink Expansion for RTX 40 Series GPU

Rear OCulink port (PCle Gen4 x4) supports external RTX 4060
GPU. Enjoy AAA games with full performance. Paired with an
OCulink GPU docking station, it enables powerful
desktop-level graphics expansion
ideal for demanding creative workloads.