Zotac crams a desktop RTX 5080 into an 11-liter box
First SFF prebuilt with desktop 5080, reference clocks, 11-liter case

Zotac showed off the Magnus One Ultra (EU27508OC) at its booth, calling it the world's most compact prebuilt desktop with a desktop RTX 5080. The whole box is 11.46 liters. That's shoebox territory.
Inside: a full desktop GeForce RTX 5080 running at reference speeds, paired with an Intel Core Ultra 7 265 (8P+12E cores, 65W). Two DDR5 SO-DIMM slots support CSODIMMs—bring your own RAM. Two M.2 NVMe slots for storage. The catch: you're locked to reference clocks on the GPU, and that 265 is a 65W chip, so this isn't a workstation replacement.
This is a viable SFF option if you want 5080 performance without building it yourself. The pre-Blackwell SFF scene topped out at 4070 Ti most of the time. Now you can get 5080 raster in a box that fits under a TV stand.
If you're weighing a 5080 build, check your current setup on BetterFPS to see if the jump makes sense for your monitor and games.
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