Zotac's Magnus One Ultra packs an RTX 5080 into a tiny PC

Zotac revealed its latest mini PC at Computex 2026. The updated Magnus One Ultra houses a full-sized desktop RTX 5080, promising a large jump in 4K gaming performance while remaining compact. The Ultra updates the Zbox line; a recent version squeezed an RTX 5070 Ti into a tiny chassis, and the new model grows by only about 20–30%.

Even with the modest size increase, Zotac claims the Magnus One Ultra is still the world's smallest computer with an RTX 5080. To address volume and cooling concerns, the company fitted a more substantial CPU cooling system that filters airflow more effectively and dissipates heat from the processor.

The Ultra keeps socketed, upgradeable components and will be available as a barebone or a full build. The barebones model ships without RAM and an SSD, lowering the upfront cost so buyers can reuse or source memory and storage themselves.

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