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Green circuit board with two silver SFF-8611 connectors and PCIe x8 edge connector

Fervit

Fervit PCIe 4.0 x8 to Oculink Adapter SFF-8611/8612 2 Port

SKU CH-3TMX-1CY6G

Adds two SFF-8611/8612 OCuLink ports via a PCIe 4.0 x8 slot, enabling 64 Gbps links for GPUs or SSDs

  • PCIe 4.0 support delivers up to 64 Gbps bandwidth
  • Two OCuLink ports connect GPUs or SSDs via optional cables
  • Backward compatible with PCIe 3.0 and 2.0 motherboards
  • Requires motherboard with bifurcated PCIe lanes for dual-drive use
  • SFF-8611 and SFF-8612 connectors compliant with SAS-4 24 Gbps

PCIe 4.0 x8 to Dual OCuLink Adapter

This Fervit adapter converts a single PCIe 4.0 x8 slot into two SFF-8611/8612 OCuLink ports. It enables connection of SSDs or an eGPU graphics card using optional cables. The card suits small hosts, desktops and laptops that need to add OCuLink connectivity. Fixing holes allow secure mounting inside the chassis.

Verify Motherboard PCIe Lane Splitting

The adapter only functions on motherboards that support detachable PCIe channels. Without lane splitting the board will recognise only one attached disk. Check your motherboard documentation for PCIe bifurcation or lane-splitting capability before ordering. Compatibility with PCIe 3.0 and 2.0 is maintained for older platforms.

Adds Two High-Speed OCuLink Ports

The bracket provides two SFF-8611/8612 connectors compliant with T10 SAS-4 24 Gbps and PCIe Gen 4 signalling up to 64 Gbps. No cables are included so you must source appropriate OCuLink cables separately. The low-profile brackets (8 cm and 12 cm) fit various chassis heights for flexible installation.

Highlights

  • PCIe 4.0 support delivers up to 64 Gbps bandwidth
  • Two OCuLink ports connect GPUs or SSDs via optional cables
  • Backward compatible with PCIe 3.0 and 2.0 motherboards
  • Requires motherboard with bifurcated PCIe lanes for dual-drive use
  • SFF-8611 and SFF-8612 connectors compliant with SAS-4 24 Gbps

Specifications

BrandFervit

Questions about this item

Does the adapter ship with the OCuLink cables needed for an SSD or eGPU?

The adapter includes the SFF-8611/8612 bracket and fixing holes; the OCuLink cables for an SSD or eGPU are optional and must be purchased separately.

Which PCIe lane configuration should I choose for two drives?

The card provides a PCIe 4.0 x8 link split across two OCuLink ports; both drives are recognised only on motherboards that support PCIe bifurcation, otherwise only the first drive is seen.

What does the 64 Gbps headline rate mean in practice?

64 Gbps is the aggregate PCIe 4.0 x8 bandwidth shared between the two ports, so each device can use up to the full x8 speed when the other is idle, and the adapter falls back to 3.0 or 2.0 on older platforms.

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