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Short braided cable with identical SFF-8611 connectors on both ends

LORDWORLD

LORDWORLD OCuLink SFF-8611 4i to SFF-8611 Active Cable 20cm

SKU CH-G28E-Q6RKC

Active OCuLink cable with SFF-8611 4i connectors carries PCIe 4.0 and 5.0 signals at up to 64 Gbps for GPUs, SSDs or expansion cards, 20 cm length

  • Up to 64 Gbps data rate with PCIe 4.0 and 5.0 support
  • Active latch secures the SFF-8611 connection for reliable signal integrity
  • 20 cm length fits tight chassis routing without excess slack
  • Backward compatible with PCIe 3.0 for broader device support
  • Works with GPU, SSD and expansion card installations using NVMe protocol

OCuLink SFF-8611 Active Cable

This 20cm active cable carries PCIe 4.0 and 5.0 signals over dual SFF-8611 4i connectors. It supports NVMe protocol at up to 64Gbps and remains backward compatible with PCIe 3.0. Builders adding an eGPU dock, high-speed SSD or expansion card to a system with a free OCuLink port can use it.

Installation and common issues

The active latch locks each end securely, so alignment matters more than force. Route the short braided cord without sharp bends to avoid signal degradation. A missing or blocked OCuLink header on the host board is the usual reason the link will not train.

Sustained-load behaviour

Active signal conditioning maintains the 64Gbps rate during long NVMe transfers or continuous GPU compute workloads. The cable stays within PCIe 4.0 and 5.0 electrical specs without the retraining drops seen on passive equivalents at this length.

What this cable cannot do

It cannot reach devices farther than 20cm away, nor connect to SFF-8612 or legacy mini-SAS ports without a separate adapter. Systems lacking an OCuLink interface entirely will need a different interconnect.

Highlights

  • Up to 64 Gbps data rate with PCIe 4.0 and 5.0 support
  • Active latch secures the SFF-8611 connection for reliable signal integrity
  • 20 cm length fits tight chassis routing without excess slack
  • Backward compatible with PCIe 3.0 for broader device support
  • Works with GPU, SSD and expansion card installations using NVMe protocol

Specifications

BrandLORDWORLD

Questions about this item

How do I confirm the 64Gbps link is active after plugging in the SFF-8611 cable?

The active latch clicks when fully seated; verify in BIOS or OS device manager that the connected SSD or GPU reports a PCIe 4.0 or 5.0 x4 link running at up to 64Gbps.

What comes in the box and do I need any extra parts for an eGPU dock?

Only the 20cm SFF-8611 4i to SFF-8611 active cable is included; you must supply a host and device each with a free OCuLink SFF-8611 port and, for GPU use, a dock enclosure with its own power supply.

Which OCuLink version should I choose for a PCIe 5.0 NVMe SSD?

This cable is rated for PCIe Gen 3, 4.0 and 5.0 with 64Gbps throughput, so it supports current PCIe 5.0 NVMe drives without needing a different version.

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