GMKtec has announced the release of the NucBox M3 Ultra, a compact mini PC designed for users who require desktop-level performance in a space-saving form factor. The system is powered by Intel’s 12th Generation Core i7-12700H processor, which features 14 cores and 20 threads, delivering boost speeds of up to 4.7 GHz. Integrated Intel Iris Xe graphics, running at up to 1.4 GHz, handle visual workloads, making the unit suitable for multitasking, media playback, and productivity applications.


The NucBox M3 Ultra supports up to 64 GB of dual-channel DDR4-3200 memory, giving users the flexibility to configure the system for a range of use cases. For connectivity, the device offers Wi-Fi 6 with speeds up to 1200 Mbps and a 2.5 Gigabit Ethernet port for stable wired networking. External display support includes HDMI, DisplayPort, and USB-C outputs, each capable of 4K resolution. All three ports can operate simultaneously, allowing for triple-monitor setups.

The chassis is constructed from CNC-machined metal with a sandblasted finish, giving it a durable and clean appearance. The cooling system uses dual copper heat pipes with twin air intakes to improve airflow and maintain stable performance during extended workloads. Measuring just 114 mm × 106 mm × 42.5 mm, the unit fits in locations where traditional desktop towers are impractical.

GMKtec offers the NucBox M3 Ultra in three configurations. The barebone version, which comes without RAM, SSD, or an operating system, is priced at $299.99. A prebuilt model with 16 GB of RAM and a 512 GB SSD costs $379.99, while a higher-capacity version with 32 GB of RAM and a 1 TB SSD is available for $499.99. Customers can use the promo code PRM3U12 to receive a $12 discount on purchases made through August 25, 2025.
The NucBox M3 Ultra is aimed at users seeking a small form factor computer capable of handling demanding workloads while maintaining a compact footprint. With its high-performance CPU, versatile display options, and multiple connectivity features, it provides a balance of portability and processing power for both home and office environments.