first I have Apologies if this topic has already been asked to often; I couldn’t find much discussion about it, so I thought it might be worth bringing up.
I think OCuLink could be a perfect addition to the modular and repairable design of the Framework Laptops.
It offers:
Full PCIe bandwidth with minimal latency, unlike Thunderbolt’s protocol overhead
Better GPU performance for gamers, creators, and developers who need more than mobile GPUs can deliver.
Sustainability benefits – GPUs can eqsy be replaced or upgraded over time.
Lower cost upgrades using standard desktop GPUs
Reuse across devices – one OCuLink GPU dock could work with multiple laptops or small form factor PCs - from framework or other vendors.
With a clean, well-designed OCuLink eGPU dock, Framework could make high-end GPU power accessible while keeping the laptop light, efficient, and long-lasting.
Would anyone else here be interested in this kind of feature?
What are the tradeoffs? How much room will it take up, how much more will it cost, what’s the impact to battery life, do you need to worry about thermals?
Personally, I don’t think they should incorporate oculink. TB5 / USB4 80G is just starting to roll out which means future platforms should support it, and oculink was iirc originally designed as an internal connector and isn’t designed to survive that many insertion cycles.
Wikipedia says USB type C is rated for 10,000 cycles.
Seems like a wash to me. I think the bigger hurdle is the framework 13 has the type c hole as part of the bottom case (idk about 12 or 16 but I assume they’re the same), so they’d have to introduce a new case and a new motherboard. Type c only has 24 pins but oculink has 36 pins so they couldn’t connect the oculink wires to the type c connector.
Maybe they could make a 36-wire cable that fits through the type-c hole and connects to an expansion card with an oculink receptacle. If they could pull that off then they’d only need new motherboards.
I think I may have gotten confused by the internal connector rating; my mistake. Even so, I think USB4 80G is the path forward rather than oculink. It’s very likely to be included on any future soc/sip, it’s more versatile, and it fits the existing internal USB C to adapter card paradigm perfectly.
You’re right — USB4 has many advantages , but … it’s tunneling which leads to overhead and higher latency because PCIe has to be encapsulated. OCuLink is native PCIe: no translation, lower latency, and closer-to-desktop performance.
