https://wccftech.com/intel-element-modular-pc-form-factor-next-gen-nucs/

Intel has shown off their next-gen Modular PC platform known as Element which would include the CPU, memory, storage and other features on a single dual-slot add-in card. Talk about CPUs taking the GPU approach with a socket-less design and rather a fully encased which you can plug into a PCI-express slot near you.

Talking to Anandtech, Intel's Ed Barkhuysen shed some light over the Element Modular PC. The PC platform includes mostly everything you'd need to when building a PC with the most significant of it all being the processor. This won't obviously be the first time we have seen a CPU embedded on an add-in-card but the last ones were put together more than a decade ago. With Element, Intel is aiming for a modular PC design and they are currently targetting its use on next-generation NUCs.