LetLinkSo LLS-CD-1PC2OC-01 PCIe 4.0 x8 to dual Oculink SFF-8612 expansion card

Expanded Oculink Connectivity

The LetLinkSo LLS-CD-1PC2OC-01 adds two Oculink SFF-8612 x4 ports through a single PCIe 4.0 x8 slot, giving desktop builders a direct path to external NVMe storage or eGPU enclosures that use SFF-8611 cables. It targets users whose motherboards lack native Oculink headers but have a free x8 electrical slot. Buyers who need more than two ports or who only have x4 or x1 slots available cannot use this card.

Welded Connector Construction

Each Oculink housing is welded to the PCB rather than surface-mounted, which reduces flex during repeated cable insertion and removal. The x8 edge connector splits into two independent x4 links, so each port can run at the full PCIe 4.0 16 GT/s per lane rate without sharing bandwidth. Systems without bifurcation support in the BIOS will not see both ports simultaneously.

Boot Support And Driver-Free Operation

The adapter presents attached NVMe drives as bootable devices, allowing the operating system to load directly from external storage without an internal drive. No proprietary drivers are required; Windows, Windows Server and Linux all recognise the card natively on insertion. The package contains only the adapter board itself, so SFF-8611 cables and any mounting brackets must be sourced separately.