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Green circuit board with vertical OCuLink SFF-8612 and U.2 SFF-8639 connectors plus SATA power

LORDWORLD

LORDWORLD SFF-8643 PCI-E 4.0 Female to U.2 SFF-8639 U.3 NVME SSD Adapter

SKU CH-79BQ-8XM4N

Connects a U.2 or U.3 NVME SSD to an SFF-8643 OCuLink port with PCIe 4.0 or 5.0 signalling at up to 64Gbps and includes a SATA power connector

  • Up to 64Gbps throughput via PCIe 4.0 and 5.0 signals
  • NVMe 1.2 protocol support for modern SSD performance
  • OCuLink SFF-8612 to U.2/U.3 SFF-8639 connectivity
  • Vertical connector fits tight spaces around female ports
  • SATA power input drives the adapter without extra cables

SFF-8643 to U.2 U.3 NVME Adapter

This adapter bridges an SFF-8643 host port to a U.2 or U.3 NVME drive using a vertical OCuLink SFF-8612 female connector and an SFF-8639 female receptacle. It handles PCI Express 4.0 and 5.0 signalling at up to 64Gbps while supporting the NVMe 1.2 protocol. Builders adding high-speed enterprise storage to a workstation or server backplane will find the pin-out matches standard cabling.

Vertical OCuLink Connector and SATA Power

The vertical SFF-8612 female connector fits tight spaces around the motherboard header, reducing strain on the PCB and adjacent components. A dedicated SATA power connector supplies the drive directly, so no extra power adapters are required. The rigid PCB and gold-plated contacts maintain signal integrity across the 64Gbps link without active electronics.

No Cables or Drives Included

The package contains only the adapter board; an OCuLink cable and the target NVME SSD must be sourced separately. Because the board is a passive gender changer, it adds no firmware, drivers or management software to the system. Buyers who need a complete kit with cables or a bundled drive should look elsewhere.

Highlights

  • Up to 64Gbps throughput via PCIe 4.0 and 5.0 signals
  • NVMe 1.2 protocol support for modern SSD performance
  • OCuLink SFF-8612 to U.2/U.3 SFF-8639 connectivity
  • Vertical connector fits tight spaces around female ports
  • SATA power input drives the adapter without extra cables

Specifications

BrandLORDWORLD

Questions about this item

What PCIe generation does the SFF-8643 interface support, and what bandwidth does it cap at?

The adapter carries PCIe 4.0 and 5.0 signals through the SFF-8643 connector, delivering up to 64 Gbps.

What connectors and power input does the board require to fit in my system?

It has one OCuLink SFF-8612 female, one U.2/U.3 SFF-8639 female, and a SATA power connector for drive supply.

How do I install the adapter, and which step is commonly missed?

Plug the SFF-8643 end into the motherboard OCuLink port, attach the U.2/U.3 drive, then connect SATA power — forgetting the power cable is the typical error.

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