LetLinkSo LLS-CD-1PC1OC-01 PCIe 4.0 x4 to Oculink SFF-8612 Internal Adapter Card

PCIe 4.0 x4 to Oculink SFF-8612 Adapter

This adapter adds a single Oculink SFF-8612 x4 port to a PCIe 4.0 x4 slot, letting you connect NVMe SSDs or eGPUs that use an SFF-8611 cable. It is aimed at builders who need an extra high-speed internal link without occupying an M.2 socket. The card supports the PCIe 4.0 standard at 16 GT/s per lane across four lanes. Total bandwidth reaches 64 Gbps for demanding storage or GPU workloads.

Check slot version and cable type

Verify your motherboard has a free PCIe x4 slot that runs at Gen 4.0, 3.0, 2.0 or 1.0; the card is backward compatible with all those generations. Ensure the target device uses an internal SFF-8611 Oculink cable, not an external variant. The board accepts Windows and Linux without extra drivers, but confirm your BIOS can initialise the connected device if you plan to boot from it. No external power connector is present on the card.

Welded Amphenol connector and boot support

The Oculink connector housing is welded to the PCB for a more secure fit and reduced fragility during repeated plug cycles. Amphenol-branded connectors are used to minimise signal interference and keep transmission stable. The adapter supports bootable devices, so a connected NVMe SSD can serve as a system drive. The package contains only the adapter card; the SFF-8611 cable and any drive or eGPU enclosure must be sourced separately.