MSI Cubi NUC AI+ 3MG tiny PC supports a massive 128 GB of removable RAM

Unveiled earlier this year at CES 2026, the Cubi NUC AI+ 3MG introduces significant updates to the older Cubi NUC AI+ 2MG as detailed in our review here. One upgrade in particular might matter more than others especially at a time of rapid AI investment: RAM. Unlike most other mini PCs of similar size, the latest MSI model supports 2x SODIMM slots for up to 128 GB of removable memory.

Supporting 128 GB of RAM isn't anything special in the world of full-size PC towers, but they are rarely seen on mini PCs where soldered RAM or tighter capacity limitations are commonplace. The older Cubi NUC AI+ 2MG, for example, maxes out at only 32 GB of soldered RAM while the larger Beelink GTI15 Ultra can "only" go up to 96 GB via two 48 GB DDR5 SODIMM modules. The 128 GB maximum for the NUC AI+ 3MG makes it a potentially better candidate for running memory-intensive applications, virtual environments, LLMs, and more.

Beyond the impressive memory capacity, the Cubi NUC AI+ 3MG sports a much faster and more efficient Panther Lake CPU than the Lunar Lake processor options in the Cubi NUC AI+ 2MG while also being lighter and more compact. The new MSI model is available in barebones SKUs to make it more affordable for businesses that may already have several SSDs and RAM modules ready to be salvaged and reused.