Lenovo Xiaoxin mini PC has entered its pre-sale phase in China with a starting price tag of CNY3299, which converts to around $464. It comes with Intel 13th Gen processors, with the base variant featuring the Core i5-13420H and the top-end model packing Core i7-13700H. The other specs of this mini computer are good too.https://www.notebookcheck.net/Lenovo-Xiaoxin-mini-PC-debuts-with-Intel-13th-Gen-processors.792591.0.html
What they have done to create this, is take their M70/80/90Q series platform, turn the motherboard upside down, add an internal PSU and create a shell with the dimensions exactly the same as the 1L chassis from the ThinkCentre series I mention above. While quite a smart move cost-wise, I think the serviceability of this PC will suffer - the RAM and M.2 SSDs are now mounted under the top cover, which is not removable, so you need to take the motherboard out to reach those.