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Green circuit board with gold M.2 edge connector and silver OCuLink port linked by 15 cm flat ribbon

LetLinkSo

LetLinkSo LLS-CB-1MT1OC-01 M.2 to OCuLink expansion card 15 cm

SKU CH-E9HC-7H36M

Converts an M.2 slot into an OCuLink SFF-8611 4i port for eGPU or NVMe expansion using a 15 cm PCIe 4.0 FPC cable

  • TypePCIe 4.0
  • StandardM.2 to Oculink 4i
  • Data Transfer Rate16 GT/s (per lane)
  • Core Speed16 GT/s (per lane)
  • CompatibilityPCIe 4.0
  • Specifications0.49 ft (15cm)

Length 0.49 ft / 15 cm

  • Adds an OCuLink SFF-8611 4i port from an M.2 slot
  • PCIe 4.0 x4 bandwidth up to 64 Gbps
  • 15 cm flexible circuit fits tight enclosures
  • Board trimmable to 2230, 2242, 2260, 2280 lengths
  • Driver-free on Windows, Mac OS, Linux

Connectivity Expansion

This LetLinkSo adapter converts an M.2 PCIe NVMe socket into an OCuLink SFF-8611 4i host port using a 15 cm flexible printed circuit board. It supports PCIe 4.0 x4 bandwidth up to 64 Gbps at 16 GT/s per lane and remains backward compatible with PCIe 3.0 and 2.0 systems.

Builder Fit

Suits owners of laptops or mini PCs who need external GPU, U.2 SSD or PCIe card connectivity through their existing M.2 slot. Not for users whose device lacks an M.2 PCIe NVMe socket or who require hot-swap capability, as the installation requires a full power-off.

Ready Install

The package includes a screwdriver and fixing screw so the board can be secured immediately after trimming the 22×80 mm NVMe board to 2230, 2242, 2260 or 2280 lengths. Driver-free operation works with Windows, Mac OS and Linux for instant recognition.

Highlights

  • Adds an OCuLink SFF-8611 4i port from an M.2 slot
  • PCIe 4.0 x4 bandwidth up to 64 Gbps
  • 15 cm flexible circuit fits tight enclosures
  • Board trimmable to 2230, 2242, 2260, 2280 lengths
  • Driver-free on Windows, Mac OS, Linux

Specifications

BrandLetLinkSo
SeriesM.2 to Oculink
ModelLLS-CB-1MT1OC-01
TypePCIe 4.0
StandardM.2 to Oculink 4i
Data Transfer Rate16 GT/s (per lane)
Core Speed16 GT/s (per lane)
CompatibilityPCIe 4.0
Specifications0.49 ft (15cm)
FeaturesExpand OCuLink Connectivity Effortlessly
Weight3.7 ounces
Package Contents1 x PCIe 4.0 M.2 to Oculink SFF-8612 Adapter

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Questions about this item

What must my laptop or mini PC already have for this M.2 to OCuLink adapter to work?

Your device needs an M.2 PCIe NVMe socket (2230, 2242, 2260, or 2280) with an available 22×80 mm slot; the board can be trimmed to 22×30 mm, 22×42 mm, or 22×60 mm if space is tight.

Will this card still function if my system only supports PCIe 3.0 or 2.0?

Yes, the adapter is backward compatible with PCIe 3.0 and 2.0, so it will operate at the lower generation speed while keeping the same OCuLink SFF-8611 4i host port.

How can I verify the link is running at PCIe 4.0 x4 after installation?

Check your OS device manager or a tool like GPU-Z; the OCuLink port should negotiate a 16 GT/s per lane link (64 Gbps total) when connected to a PCIe 4.0 eGPU or SSD.

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