GMKtec has released the NucBox M3 Ultra a compact desktop computer built around Intel's 12th Gen Core i7-12700H, a 14-cores, 20-threads processor with turbo speeds up to 4.7 GHz. The system targets users who need desktop performance in a portable form factor. Graphics handling comes from integrated Intel Iris Xe graphics running at up to 1.4 GHz. The system supports up to 64 GB of dual-channel DDR4-3200 memory. In terms of connectivity it includes Wi-Fi 6 with 1200 Mbps speeds and 2.5 Gigabit Ethernet. The NucBox M3 Ultra comes with three display outputs, it has HDMI, DisplayPort, and USB-C ports and all these connections can handle 4K resolution at the same time.

The case is made of metal that's been CNC-machined and has a sandblasted finish. For cooling GMKtec NucBox M3 Ultra Mini PC uses a dual copper system with twin air intakes for improved airflow and heat dissipation. Its compact size (114 mm × 106 mm × 42.5 mm) makes it suitable for spaces where traditional desktop towers won't fit.