A Framework Laptop 16 owner has used off-the-shelf parts and some deft soldering to create a unique OCuLink expansion module for their laptop.
As VideoCardz reports, this makes it possible to connect an OCuLink cable, which can in turn connect to an external graphics card. More importantly, this OCuLink connection can run at up to x8 speeds, effectively enabling full-speed desktop graphics on a Framework laptop.
Framework Laptop 16 and other models are designed to be customized. Modules come in all shapes and sizes and include a range of ports and connectors, display kits, storage and memory options, fan and cooler kits, speakers, and just about any other part of a laptop you might want to replace or fix. Specific components can be swapped out, repaired, or upgraded as needed, making it a great fit for DIY PC builders, modders, and enthusiasts.
Some of those modders and enthusiasts develop their own modules, but one thing Framework doesn’t offer is OCuLink connectivity. Until now.
On X, Framework championed the OCuLink expansion module as “a huge milestone” that “makes eGPUs possible with almost no performance hit vs putting the same graphics card in a desktop!” This is because OCuLink is basically PCIexpress over a fiber optic cable, offering enormous bandwidth compared with more traditional connections and rivalling the likes of Thunderbolt 5 and USB4.
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The raw performance of the OCuLink connection is dependent on the PCIexpress generation of the GPU and the host system’s support, with the maximum being PCIe 5. That should effectively mean you could run an RTX 5080 or even RTX 5090 without much of a performance hit. That top-tier GPU doesn’t even lose much performance if you run it on a PCIe 3 x16 slot (equivalent to an x4 PCIe 5 slot), so this OCuLink module should be enough for just about anything.
In this example, the module’s developer showcased it running an RTX 4070 desktop graphics card over PCIe 4 x8 speeds with no real performance loss from natively running the card in a desktop motherboard. No doubt others in the community will take this idea and run with it. We look forward to seeing how well the laptop performs with a current-generation card.
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Jon Martindale is a tech journalist from the UK, with 20 years of experience covering all manner of PC components and associated gadgets. He’s written for a range of publications, including ExtremeTech, Digital Trends, Forbes, U.S. News & World Report, and Lifewire, among others. When not writing, he’s a big board gamer and reader, with a particular habit of speed-reading through long manga sagas.
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