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Vszerda OCuLink SFF-8611 8x to dual SFF-8643 4x active cable 100 cm

Vszerda

Vszerda OCuLink SFF-8611 8x to Dual SFF-8643 4x Active Cable 100 cm

SKU CH-G3F9-MJ99Y

Connects an OCuLink SFF-8611 8x controller to two SFF-8643 4x backplanes with active latching at up to 16 Gbps over 100 cm

Cable Length 100 cm

  • Connect backplane to controller with SFF-8611 8x to dual SFF-8643 4x
  • Active latch locks securely for reliable internal device connections
  • 100 cm length suits standard chassis routing needs
  • Supports up to 16 Gbps data transfer rate
  • 80-pin to dual 36-pin male connectors fit OCuLink 8x interface

OCuLink 8x to Dual SFF-8643 Active Cable

This OCuLink cable connects a controller with an SFF-8611 8x 80-pin male port to a backplane or enclosure using two SFF-8643 4x 36-pin male ports. It is built for internal PCIe data links between host adapters and multi-bay storage devices. The active design supports signal integrity over the 100 cm length.

Bandwidth Limits of the 16 Gbps Link

The cable carries up to 16 Gbps across the eight PCIe lanes split into two four-lane branches. Total throughput depends on the host controller and the connected backplane; the cable itself does not add protocol overhead. Builders must verify that both ends negotiate the same generation and lane count to reach the rated ceiling.

Replaces Passive OCuLink Breakout Cables

This active assembly replaces shorter passive breakout cables when the routing distance exceeds their reliable reach or when the chassis layout demands a 100 cm run. It is not suited for external device connections or for single-port SFF-8643 targets that do not split the 8x link into dual 4x paths.

Highlights

  • Connect backplane to controller with SFF-8611 8x to dual SFF-8643 4x
  • Active latch locks securely for reliable internal device connections
  • 100 cm length suits standard chassis routing needs
  • Supports up to 16 Gbps data transfer rate
  • 80-pin to dual 36-pin male connectors fit OCuLink 8x interface

Specifications

No published specifications for this item yet.

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Questions about this item

Should I choose the 50 cm or 100 cm version for my build?

The 100 cm length gives more routing space in larger cases while the 50 cm suits compact layouts; both use the same SFF-8611 8x to dual SFF-8643 4x pinout and active latch.

What does the 16 Gbps rate mean when the cable is installed?

It supports PCIe 4.0 x4 bandwidth per SFF-8643 4x branch, so each connected drive can run at full Gen 4 speed through the SFF-8611 8x host port.

How does the SFF-8611 8x interface limit performance in practice?

The 80-pin SFF-8611 8x host connector carries eight lanes total, capping aggregate throughput at 16 Gbps per lane and splitting it across the two 36-pin SFF-8643 4x endpoints.

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