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Slimline SAS 4.0 breakout cable, SFF-8654 8i 74pin to dual 4i 38pin, 40cm

SMUGDESK

SMUGDESK SFF-8654 8i 74Pin to Dual 4i 38Pin SAS Cable 40cm

SKU CH-8A78-WQREY

Splits one SFF-8654 8i 74Pin port into two 4i 38Pin channels for PCIe 4.0 SAS storage backplanes

  • Expands connectivity with SFF-8654 8i to dual 4i splitter design
  • Delivers PCIe 4.0 bandwidth for ultra-high-speed server storage transmission
  • Optimises airflow with 40cm length for tidy rackmount internal wiring
  • Ensures stable links via gold-plated 74pin and 38pin contacts
  • Resists EMI with robust shielding for 24/7 continuous server operation

Server storage splitter cable

This 40cm Slimline SAS 4.0 cable splits a single SFF-8654 8i 74-pin port into two independent SFF-8654 4i 38-pin connections. It lets one RAID controller or host bus adapter drive two separate groups of high-speed storage devices. The design targets enterprise server arrays, JBOD enclosures and hot-swap backplanes where port density matters. Builders needing more than two breakout paths will require additional cables or a different expander topology.

Passive thermals and signal integrity

The cable operates without active cooling, adding no fan noise or power draw to the chassis. Multi-layer shielding and strict impedance control suppress crosstalk and EMI in dense 24/7 server environments. Gold-plated contacts resist oxidation and maintain low attenuation across the PCIe 4.0 link. Installers who need active thermal management for the drives themselves must provision that separately in the enclosure.

Rack-ready internal fit

The 40cm length keeps routing tidy inside 1U and 2U rackmount servers from Supermicro, Dell, HPE, Lenovo and similar platforms. It connects directly to compatible RAID controllers and backplanes without adapters, freeing expansion slots that a bulkier card would occupy. Systems lacking SFF-8654 ports on the controller or backplane cannot use this cable without a separate interface conversion.

Highlights

  • Expands connectivity with SFF-8654 8i to dual 4i splitter design
  • Delivers PCIe 4.0 bandwidth for ultra-high-speed server storage transmission
  • Optimises airflow with 40cm length for tidy rackmount internal wiring
  • Ensures stable links via gold-plated 74pin and 38pin contacts
  • Resists EMI with robust shielding for 24/7 continuous server operation

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the SFF-8654 8i to dual 4i splitter cable in my server?

Connect the single 74-pin male end to the RAID controller port, then attach each 38-pin male branch to separate backplane ports; the 40cm length fits tight chassis routing.

What maintenance will the gold-plated contacts on this SAS cable need?

Gold-plated pins resist oxidation for long-term durability; no routine cleaning is required unless contamination is visible during a scheduled server shutdown.

What limit appears first when running this PCIe 4.0 cable at sustained throughput?

The 40cm fixed length and multi-layer shielding are engineered to maintain signal integrity at PCIe 4.0 speeds; thermal or EMI limits in the chassis typically appear before cable degradation.

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