Oculink expansionbay for Looking Glass

[MJ1]

Welcome to the forum.

@Linus_Lackner

I saw the i8 topic in a diffrent topic already but i thought i make a post regarding Looking glass.

Not sure if this topic you saw, but I thought I should point it out in case you haven’t seen it.

OcuLink Expansion Bay Module

We’re starting to see OcuLink-based eGPUs come around. The Expansion Bay module is sized in a way that it’s possible to fit an OcuLink receptacle in it, so a mostly passive adapter board is probably possible. This is assuming sufficient signal integrity through the full chain of connectors and cables, but it would also be possible to stick a redriver on the card. This probably isn’t something we would build ourselves, but all the necessary parts should be available in small quantities, and it…

In that topic, Seneral has posted designs for a Oculink expansion bay module. And I believe Josh_Cook also said he plans to make a version as well.

There exist cables that convert 8-lane oculink to dual 4-lane oculink.

Framework has published a lot of information on their github, like the expansion bay pinout. Looks to be 8x PCIe.

ExpansionBay/Electrical at main · FrameworkComputer/ExpansionBay