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Thin black SAS breakout cable, one 74‑pin SFF‑8654 8i to two 38‑pin SFF‑8654 4i, 40 cm

SMUGDESK

SMUGDESK SFF8654 8i 74Pin to Dual 4i 38Pin SAS Cable 40cm

SKU CH-55E0-Q1VZY

Splits a single 74-pin SFF-8654 8i port into dual 38-pin 4i connectors for NVMe expansion in tight spaces

  • PCIe 4.0 bandwidth splits single 8-lane SFF-8654 port into dual 4-lane SFF-8654 connectors
  • Ultraslim low-profile form factor optimises internal space and airflow for compact servers
  • Impedance-matched shielded wiring minimises signal loss and EMI for stable NVMe transmission
  • Fully compatible with NVMe SSDs, storage controllers and RAID systems for enterprise storage
  • 40cm short length enables tight-space internal routing inside slim rackmount servers

SMUGDESK SFF8654 Breakout Cable

This PCIE 4.0 Ultraport Slimline SAS cable splits a single SFF8654 8i 74Pin male connector into two SFF8654 4i 38Pin male connectors. It is designed for server builders and storage administrators who need to expand NVMe connectivity inside compact chassis. The 40cm length suits tight internal routing in slim rackmount servers and small-form-factor workstations.

Installation Notes

The ultrathin low-profile form factor simplifies routing through crowded drive cages and backplanes without obstructing airflow. Connectors are keyed male SFF8654 interfaces; verify that your controller or backplane provides the matching female 8i and 4i ports before installation. No drivers are required, but incorrect port alignment or excessive bending near the crimp can degrade signal integrity.

Capacity and Headroom

The impedance-matched shielded conductors maintain full PCIE 4.0 bandwidth across both 4-lane branches for multi-drive NVMe arrays and RAID controllers. Performance scales with the attached endpoints and controller capabilities. The 40cm reach limits use to short-distance internal links; longer runs or external enclosures are not supported by this cable length.

Highlights

  • PCIe 4.0 bandwidth splits single 8-lane SFF-8654 port into dual 4-lane SFF-8654 connectors
  • Ultraslim low-profile form factor optimises internal space and airflow for compact servers
  • Impedance-matched shielded wiring minimises signal loss and EMI for stable NVMe transmission
  • Fully compatible with NVMe SSDs, storage controllers and RAID systems for enterprise storage
  • 40cm short length enables tight-space internal routing inside slim rackmount servers

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the cable is delivering full PCIe 4.0 speed after installation?

Run a benchmark on the connected NVMe drives and verify throughput matches PCIe 4.0 specifications for the SFF8654 8i to dual 4i configuration.

What connectors are included and do I need any extra adapters for my NVMe SSDs?

The cable has one SFF8654 8i 74Pin male and two SFF8654 4i 38Pin male connectors; no extra adapters are required if your drives and controller use SFF8654 4i ports.

Should I choose the 40cm length or is a longer version available for larger chassis?

This model is only offered in the 40cm length, designed for tight internal routing in slim rackmount servers and compact workstations.

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