Hello, Is it possible connecting two Cyclone 10 to one virtual component logically by SerDes in order to inlarge the RAM capacity ? Thanks

It would be considerably cheaper to bolt an external RAM to your primary Cyclone 10 device...

However, if you really want to bolt two Cyclone 10 devices together via SERDES - it's very possible. I'm not sure what you want from a single 'virtual component'. However, there is IP for the SERDES and a relatively small amount of logic each end of the link should suffice.

Cheers,

Alex