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Blue cable with SFF8643 connector splitting to dual SFF8639 and SATA 15pin power

SMUGDESK

SMUGDESK Mini SAS HD SFF8643 4i to Dual SFF8639 with SATA 15Pin Power Cable

SKU CH-9RAC-C7QWT

Converts one SFF8643 4i Mini SAS HD port to dual SFF8639 U.2 NVMe SSD interfaces with integrated SATA 15pin power at 12Gbps using 32AWG copper

  • Converts one SFF8643 4i port to dual SFF8639 U.2 NVMe drives
  • Integrated SATA 15pin power connector supplies stable power to U.2 SSDs
  • Supports 12Gbps SAS and NVMe bandwidth for enterprise storage arrays
  • 32AWG lowloss copper wire reduces signal attenuation and crosstalk
  • 1meter length enables clean internal routing in standard rack servers

Mini SAS HD SFF8643 4i breakout cable

This SMUGDESK cable converts a single Mini SAS HD SFF8643 4i port into two SFF8639 U.2 connectors for NVMe SSD expansion. Integrated SATA 15pin power leads supply stable current to both drives, removing the need for separate power cables. The 1metre length suits standard rack servers and workstations. It is built for storage administrators and workstation builders adding highspeed U.2 storage.

Upgrade path from singleport SAS controllers

The cable replaces a basic SFF8643 4i fanout that lacks integrated power or dual U.2 endpoints. The jump is worth it when a controller or backplane provides only one Mini SAS HD port but the chassis has space for two U.2 NVMe drives. It also removes the clutter of extra SATA power extensions in dense enclosures.

Dual U.2 NVMe at 12Gbps with 32AWG copper

The assembly handles two NVMe U.2 SSDs running at 12Gbps over 32AWG lowloss copper conductors. Headroom covers enterprise storage arrays, RAID deployments and highperformance workstation workloads. It runs out when more than two U.2 devices are required or when the host controller does not support bifurcation of the SFF8643 4i lanes.

Highlights

  • Converts one SFF8643 4i port to dual SFF8639 U.2 NVMe drives
  • Integrated SATA 15pin power connector supplies stable power to U.2 SSDs
  • Supports 12Gbps SAS and NVMe bandwidth for enterprise storage arrays
  • 32AWG lowloss copper wire reduces signal attenuation and crosstalk
  • 1meter length enables clean internal routing in standard rack servers

Specifications

No published specifications for this item yet.

Questions about this item

What space does the 1 m cable with SFF8643 4i and dual SFF8639 connectors need inside a standard rack server?

The 1 m length is optimised for clean internal routing in standard rack servers and workstations, allowing the SFF8643 4i plug and two SFF8639 U.2 ends to reach drive bays without excess slack.

Which step is often missed when connecting the SATA 15pin power to the U.2 drives?

The SATA 15pin power connector must be seated firmly on the drive backplane or adapter; a loose fit will leave the NVMe U.2 SSDs unpowered even though the data links are active.

When should the 32AWG copper cable be inspected or replaced in a 12Gbps SAS array?

Inspect the 32AWG copper conductors if 12Gbps SAS or NVMe throughput drops or errors appear; replace the cable if the jacket is kinked, connectors are bent, or signal loss is measured.

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