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Green PCB adapter card with silver PCIe x4 edge connector and black SFF-8612 port, low-profile bracket included

RIITOP

RIITOP PCIe 4.0 x4 to Oculink SFF-8612 Adapter Card

SKU CH-PP58-ZBE06

Adds an Oculink SFF-8612 port via PCIe 4.0 x4 for NVMe SSDs or eGPUs at up to 64 Gbps

  • TypePCI Express Controller Card
  • External USB PortsNo

Model 1 Port

  • Adds an external Oculink SFF-8612 port through a PCIe 4.0 x4 slot
  • Delivers 64 Gbps bandwidth across four lanes for full NVMe or eGPU performance
  • Welded connector housing strengthens the port for repeated plug cycles
  • Works as a boot device on Windows, Linux or macOS without extra drivers
  • Includes a low-profile bracket for small-form-factor builds

PCIe 4.0 x4 to Oculink SFF-8612 Adapter

This adapter card adds a single external Oculink SFF-8612 port to a desktop PC through a PCIe 4.0 x4 slot. It enables connection to external devices such as NVMe SSD enclosures or eGPU docks using an SFF-8611 cable. The card operates without external power and includes a low-profile bracket for small form factor cases.

Suits builds adding external storage

Builders who need to attach an Oculink-based NVMe array or external GPU dock will find the required Gen4 bandwidth here. Systems limited to PCIe 2.0 or 3.0 slots can still use the card, though throughput drops to the slot's maximum. Buyers who need multiple Oculink ports or internal drive connectors should look at a different adapter.

PCIe Gen4 x4 upstream delivering 64 Gbps total

The upstream interface runs at 16 GT/s per lane across four lanes, providing 64 Gbps of raw bandwidth to the single SFF-8612 port. This matches the full speed of a Gen4 x4 NVMe drive or external GPU link. Actual performance scales down automatically when installed in a Gen3 or Gen2 slot.

Highlights

  • Adds an external Oculink SFF-8612 port through a PCIe 4.0 x4 slot
  • Delivers 64 Gbps bandwidth across four lanes for full NVMe or eGPU performance
  • Welded connector housing strengthens the port for repeated plug cycles
  • Works as a boot device on Windows, Linux or macOS without extra drivers
  • Includes a low-profile bracket for small-form-factor builds

Specifications

TypePCI Express Controller Card
External USB PortsNo

Other versions of this model

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Questions about this item

What bandwidth does the PCIe 4.0 x4 interface provide on this adapter?

The PCIe 4.0 x4 upstream link delivers 16 GT/s per lane across four lanes, reaching a total of 64 Gbps for full-speed data transfer.

What physical slot and bracket does the card require to mount in a PC?

It fits one available PCIe 4.0 x4, x8 or x16 slot and includes a low-profile bracket for slim chassis.

How is the card installed and what common step should be avoided?

Insert the card into the PCIe slot, secure the bracket, then connect an SFF-8611 cable; no driver installation is needed.

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