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Framework OCuLink Dev Kit

The Framework OCuLink Dev Kit is a modular adapter and dock system for the Framework Laptop 16, previewed on April 21, 2026 at Framework's next-gen hardware event123. It uses the OCuLink 8i interface to provide up to 128 Gbps bidirectional throughput for external PCIe devices, making the Framework Laptop 16 the first laptop to expose an 8-lane OCuLink interface24. The kit enables connecting external GPUs, network cards, video capture cards, and other PCIe peripherals with very little performance penalty compared to a desktop PC25.

Preview

This product has been announced but not yet released. Pricing and firm availability have not been announced. Framework expects to ship the kit later in 202625.

The Dev Kit leverages the Framework Laptop 16's Expansion Bay, which provides an internal PCIe x8 interface originally designed for upgradeable discrete Graphics Modules2. When Framework open-sourced the Expansion Bay documentation, the community quickly developed multiple OCuLink adapter designs6. Framework's official kit builds on those community efforts with a polished, three-part solution2.

Kit Components​

ComponentDescription
OCuLink Adapter BoardDrops into a Framework Laptop 16 Expansion Bay Shell and routes the PCIe interface to an OCuLink connector on the rear of the laptop24
Graphics Module OCuLink DockAllows re-using Framework Laptop 16 Graphics Modules externally at native performance25
PCIe OCuLink DockAccepts standard desktop PCIe add-in cards (GPUs, 100 Gbps network cards, video capture cards, etc.)24

Specifications​

ComponentDetails
InterfaceOCuLink 8i (PCIe x8)24
BandwidthUp to 128 Gbps bidirectional24
CompatibilityFramework Laptop 16 only5
Hot-plugNot supported — system must be powered off before connecting or disconnecting5
PowerUser-supplied desktop PSU required for PCIe OCuLink Dock5
EnclosureReference 3D-printable designs provided by Framework25

Design Philosophy​

Framework designed the kit as a bare-bones developer kit to keep costs low5. Framework provides the core electronics, structural components, and reference 3D-printable enclosure designs, while users supply the GPU, power supply, and overall setup25. Users can pick individual components or the full kit, and can mix and match with other OCuLink solutions already available on the market5.

OCuLink differs from Thunderbolt and USB4 eGPU solutions by providing a direct PCIe connection without protocol overhead, resulting in near-native performance45. The trade-offs are that OCuLink connectors are less robust, only transmit PCIe data (no USB or power delivery), and do not support hot-plugging5.

  • Framework Laptop 16 Expansion Bay documentation and CAD files on GitHub6
  • Community OCuLink Expansion Bay Module thread6

Footnotes​

  1. Framework Previews The OCuLink Dev Kit — Phoronix ↩

  2. Framework Laptop 16 upgrades and OCuLink Dev Kit — Framework Blog ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13

  3. Framework Laptop 16 gets OCuLink 8i Dev Kit preview, for even faster external GPUs — VideoCardz ↩

  4. Framework Laptop Expansion Module Offers Big Graphics Boost — PCMag ↩ ↩2 ↩3 ↩4 ↩5 ↩6

  5. Framework's first eGPUs turn its laptop into a desktop PC — The Verge ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12

  6. OcuLink Expansion Bay Module — Framework Community ↩ ↩2 ↩3