We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Mini SAS HD SFF8643 4i cable splits to dual SFF8639 U.2 ports with SATA 15pin power, 1meter length

SMUGDESK

SMUGDESK Mini SAS HD SFF8643 4i to Dual SFF8639 U.2 with SATA 15Pin Power Cable

SKU CH-GNDH-RM9CY

A 1 metre Mini SAS HD SFF8643 4i breakout cable splits one port into dual SFF8639 U.2 NVMe connections with integrated SATA 15 pin power for 12 Gbps enterprise storage

  • Single SFF8643 4i port powers dual U.2 NVMe drives via integrated SATA 15pin power
  • 12Gbps bandwidth supports enterprise RAID arrays and highspeed storage deployments
  • 32AWG lowloss copper conductors minimize signal attenuation for reliable longterm performance
  • 1meter length enables tidy internal routing in rackmount servers and compact NAS systems
  • Precision shielding reduces electromagnetic interference for continuous stable storage operation

Mini SAS HD SFF8643 4i breakout cable

This cable converts a single Mini SAS HD SFF8643 4i port into two independent SFF8639 U.2 connectors for NVMe solid-state drives. Integrated SATA 15pin power connectors supply both drives directly from the same assembly. The 12Gbps bandwidth supports enterprise RAID arrays and high-speed storage deployments. Shielded 32AWG copper conductors minimise signal loss for reliable operation.

Who can use this breakout cable

Builders expanding a server or workstation with dual U.2 NVMe drives from one SFF8643 4i controller port will find the pinout and power delivery matched to that task. The 1-metre length suits typical rackmount and compact chassis routing. Installations that require a different controller interface, longer reach, or drives without U.2 connectors cannot use this assembly.

Deciding specification: 12Gbps over SFF8643 4i

The cable is rated for 12Gbps transmission across the SFF8643 4i host link and each SFF8639 U.2 device link. If the controller or backplane operates at a lower signalling rate the cable will still function, but the 12Gbps headroom is the figure that confirms suitability for current-generation NVMe RAID workloads.

Highlights

  • Single SFF8643 4i port powers dual U.2 NVMe drives via integrated SATA 15pin power
  • 12Gbps bandwidth supports enterprise RAID arrays and highspeed storage deployments
  • 32AWG lowloss copper conductors minimize signal attenuation for reliable longterm performance
  • 1meter length enables tidy internal routing in rackmount servers and compact NAS systems
  • Precision shielding reduces electromagnetic interference for continuous stable storage operation

Specifications

No published specifications for this item yet.

Questions about this item

Do I need a separate SATA 15Pin power cable for each U.2 NVMe drive?

No, the included SATA 15Pin connector powers both U.2 NVMe drives from a single power supply output.

Will this cable work with a RAID controller that only has SFF8643 4i ports?

Yes, the SFF8643 4i plug connects directly to the controller while the dual SFF8639 U.2 ends attach NVMe SSDs for 12Gbps operation.

How can I verify the cable is delivering 12Gbps speeds after installation?

Check the RAID controller BIOS or OS disk utility to confirm each NVMe drive negotiates a 12Gbps link and shows expected throughput.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.