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Green printed circuit board with full-length PCIe x16 edge connector and four silver SFF-8612 Oculink ports along the bracket

LetLinkSo

LetLinkSo LLS-CD-1PC4OC-01 PCIe 4.0 x16 to 4-port Oculink SFF-8612 Adapter

SKU CH-4EB5-JK8RJ

Adds four Oculink SFF-8612 ports via a PCIe 4.0 x16 slot for NVMe SSDs or eGPUs at 256 Gbps total bandwidth

  • TypePCIe to Oculink Adapter
  • StandardPCIe 4.0
  • Data Transfer Rate16GT/s (per lane)
  • Operating Systems SupportedWindows,Windows Server and Linux
  • CompatibilityPCIe 4.0
  • SpecificationsPCIe x16 to 4-port Oculink

Adapter Type PCIe x16 to 4-Port Oculink / External

  • Add four Oculink SFF-8612 ports via a single PCIe 4.0 x16 slot
  • 256 Gbps total bandwidth at 16 GT/s per lane across 16 lanes
  • Welded connector housing to PCB for a more secure, durable connection
  • Supports bootable NVMe devices for flexible system startup
  • Works with Windows, Windows Server and Linux without extra drivers

LetLinkSo PCIe 4.0 x16 Adapter

The LetLinkSo LLS-CD-1PC4OC-01 adds four Oculink SFF-8612 ports to a desktop computer through a single PCIe 4.0 x16 slot. It is built for users who want to attach NVMe SSDs or an external GPU dock without opening the case again later. The card works with Windows, Windows Server and Linux operating systems.

Bandwidth limits of the PCIe 4.0 x16 link

Each lane runs at 16 GT/s, giving a theoretical 256 Gbps across the full x16 connection. Real throughput depends on the host slot wiring, the cable quality and the target device controller. If the motherboard only wires the slot at x8 or x4 electrical, the maximum drops proportionally. The adapter itself does not add latency beyond the standard PCIe switch fabric.

Installation notes and common issues

The board fits any standard x16 slot and needs no extra drivers; the OS sees the downstream ports natively. The welded SFF-8612 connectors resist wiggle, but the SFF-8611 cables must be seated fully or the link will not train. Some BIOSes require the slot to be set to PCIe or NVMe mode and may need a cold boot after the first install. Builders using a chipset-linked slot instead of a CPU-direct lane often see reduced speed or detection failures.

Puntos fuertes

  • Add four Oculink SFF-8612 ports via a single PCIe 4.0 x16 slot
  • 256 Gbps total bandwidth at 16 GT/s per lane across 16 lanes
  • Welded connector housing to PCB for a more secure, durable connection
  • Supports bootable NVMe devices for flexible system startup
  • Works with Windows, Windows Server and Linux without extra drivers

Especificaciones

BrandLetLinkSo
SeriesPCIe to Oculink Card
ModelLLS-CD-1PC4OC-01
TypePCIe to Oculink Adapter
StandardPCIe 4.0
Data Transfer Rate16GT/s (per lane)
Operating Systems SupportedWindows,Windows Server and Linux
CompatibilityPCIe 4.0
SpecificationsPCIe x16 to 4-port Oculink
FeaturesEXPANDED CONNECTIVITY
Weight1 lbs
Package Contents1 x PCIe x16 to 4-port Oculink Adapter

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Preguntas sobre este artículo

Which PCIe 4.0 x16 to 4-port Oculink SFF-8612 adapter should I choose?

The LLS-CD-1PC4OC-01 is the single model offered; it provides four SFF-8612 ports from one PCIe 4.0 x16 slot.

What does the 16 GT/s per lane rate mean once the card is installed?

Each of the 16 lanes runs at 16 GT/s, giving an aggregate 256 Gbps across the four Oculink ports for NVMe or eGPU traffic.

What interface standard does the SFF-8612 connector use and what does it cap?

The SFF-8612 ports carry PCIe 4.0 x4 each, so every connected device is limited to the 16 GT/s per lane ceiling of that standard.

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