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A 50cm OCuLink SFF-8611 4i cable splitting into two SFF-8611 4i connectors, braided shielding, gold-plated pins

SMUGDESK

SMUGDESK OCuLink SFF-8611 4i to Dual SFF-8611 4i Breakout Cable 50CM SAS4.0

SKU CH-C8WR-3S27Q

Splits one OCuLink SFF-8611 4i port into two for PCIe lane bifurcation, supporting SAS 4.0 at 24Gbps per lane with 85-ohm impedance, 50cm fixed length and braided shielding

  • Supports PCIe lane bifurcation with one-to-two SFF-8611 4i breakout
  • Delivers 24Gbps per lane bandwidth compliant with SAS 4.0
  • Fixed 50cm length optimizes server chassis wiring and airflow
  • Braided shielding with 85-ohm impedance reduces electromagnetic interference
  • Gold-plated precision pins ensure stable 24/7 enterprise operation

Breakout cable for storage arrays

The SMUGDESK OCuLink SFF-8611 4i breakout cable splits a single 4i input into two independent 4i outputs. It is built for server storage architectures that require PCIe lane bifurcation to connect multiple NVMe backplanes or RAID controllers.

Suits bifurcated slots only

This cable serves builders whose motherboard or controller can divide an upstream x8 link into two x4 links. It will not function on platforms that lack bifurcation support in the BIOS or chipset, nor on ports wired for a single x4 endpoint.

50cm length with 85 ohm impedance

The fixed 50cm harness is wrapped in dense braided shielding and engineered to 85 ohm differential impedance. This specification determines whether the cable fits the chassis layout and maintains signal integrity at 24Gbps per lane under continuous load.

Highlights

  • Supports PCIe lane bifurcation with one-to-two SFF-8611 4i breakout
  • Delivers 24Gbps per lane bandwidth compliant with SAS 4.0
  • Fixed 50cm length optimizes server chassis wiring and airflow
  • Braided shielding with 85-ohm impedance reduces electromagnetic interference
  • Gold-plated precision pins ensure stable 24/7 enterprise operation

Specifications

No published specifications for this item yet.

Questions about this item

Do I need a motherboard or RAID card with an OCuLink SFF-8611 4i port to use this breakout cable?

Yes, the cable requires a single SFF-8611 4i OCuLink source port that supports PCIe lane bifurcation to drive both output connectors.

Will this cable work with an older SAS 12 Gbps backplane I already have installed?

The cable is built to the SAS 4.0 standard at 24 Gbps per lane and will negotiate down to the backplane's lower signalling rate.

How can I verify the 24 Gbps per lane link is active after installation?

Check the RAID controller or operating-system device tree for a negotiated PCIe 4.0 x4 or SAS 4.0 24 Gbps link on each of the two SFF-8611 4i ports.

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