Microsoft’s Surface Hub 2 has an upgradeable processor cartridge design that could be used on other Surface hardware. The software maker originally filed a patent for a modular Surface Studio PC
https://www.theverge.com/2018/9/26/17904860/microsoft-surface-hardware-modular-processor-upgrade-cartridge-studio-pc
* now ship in two versions * Microsoft’s all-in-one PC was originally unveiled * Patents that appeared * seemed like the perfect monitor * patent filings show * Phone makers have tried it * made its smart TVs upgradeable * tiny PC attached to a monitor