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SMUGDESK Oculink 4i to U.2 SFF-8639 cable 50cm with 15-Pin SATA power connector

SMUGDESK

SMUGDESK Oculink 4i to U.2 SFF-8639 Cable PCIe 4.0 38Pin to 68Pin 50cm 15-Pin SATA Power

SKU CH-D6GN-BR0DW

Converts an Oculink 4i port to a U.2 or U.3 NVMe SSD with PCIe 4.0 speed and integrated 15-pin SATA power

  • PCIe 4.0 speed with 3.0 backward compatibility
  • SFF-8611 38Pin to SFF-8639 68Pin conversion
  • Integrated 15-pin SATA power for drive operation
  • 50 cm length simplifies server and workstation wiring
  • Supports U.2 and U.3 NVMe SSDs for storage expansion

Oculink 4i to U.2 Adapter

This cable converts an Oculink SFF-8611 38Pin port to a U.2 SFF-8639 interface for NVMe SSD installation. It operates at PCIe 4.0 speeds and remains backward compatible with PCIe 3.0. The 50cm length suits internal server and workstation routing. A 15-pin SATA power connector supplies the drive directly.

Check Port and Power Availability

Verify your host provides an Oculink SFF-8611 38Pin connector before ordering. Ensure a free 15-pin SATA power cable from your power supply reaches the adapter. Confirm the target drive uses the U.2 or U.3 form factor and NVMe protocol. No other interface or power standard is supported by this assembly.

Connects Oculink Host to U.2 Drive

The adapter links an available Oculink port on a motherboard or add-in card to a U.2/U.3 NVMe SSD. It draws drive power through the integrated SATA connector, leaving the data path dedicated to PCIe 4.0 signalling. This frees standard drive bays and M.2 slots for other devices while adding high-speed NVMe capacity.

How it compares

Measured against everything we stock in SATA, IDE & M.2 Drive Adapters, at today’s prices. Recalculated every night.

Price $27.99
Pricier than about 62% of the 1,721 comparable items (median $22.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does the cable include everything needed to run a U.2 NVMe SSD, or do I need a separate power lead?

The cable has a built-in 15-Pin SATA power connector, so it delivers both the PCIe 4.0 data path and power to the U.2 or U.3 drive in one 50 cm assembly.

What is the difference between the 38-pin and 68-pin ends, and which one plugs into my host?

The 38-pin SFF-8611 end plugs into the Oculink 4i port on your motherboard or controller, while the 68-pin SFF-8639 end mates with the U.2/U.3 NVMe SSD.

What real-world speed can I expect from the PCIe 4.0 link over this 50 cm cable?

The link runs at PCIe 4.0 rates and is backward compatible with PCIe 3.0, so the U.2/U.3 NVMe SSD will operate at its rated throughput limited only by the drive and host controller.

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