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Small green circuit board with two silver SFF-8643 ports facing each other

Fervit

Fervit SFF-8643 Female to SFF-8643 Female PCIe 4.0 SAS data adapter

SKU CH-T00K-DFKH1

Internal SFF-8643 female-to-female coupler joining two Mini SAS HD x4 cables for PCIe 4.0 and SAS 4.0 links at 24Gb/s

  • SAS 4.0 ready connectors support 24 Gb/s speeds
  • Couples two SFF-8643 ports for direct internal links
  • High-density design saves space in servers and workstations
  • PCIe 4.0 compatible for Gen3 and Gen4 platforms
  • Female-to-female layout extends existing cable runs

Internal SAS coupler for 24Gb/s links

The Fervit SFF-8643 Female to SFF-8643 Female adapter joins two Mini SAS HD cables or devices inside a chassis. It carries PCIe 4.0 and SAS 4.0 signals at 24Gb/s per lane without active components. The low-profile PCBA fits tight server, storage and workstation bays where space is limited.

Suited for technicians extending

Installers who need a straight-through gender changer for SFF-8643 ports will find this coupler matches the mechanical and electrical spec. It does not convert to other connector types, add signal conditioning or support external bulkhead mounting. Builders needing a different pin-out or an active retimer should look elsewhere.

SFF-8643 gender-changer for 24Gb/s SAS 4.0

The single specification that decides fit is the SFF-8643 interface rated for 24Gb/s under the SAS 4.0 standard. Both ends are female x4 Mini SAS HD ports wired for PCIe 4.0 and SAS 4.0. Verify that your cables and backplanes use the same connector before ordering.

How it compares

Measured against everything we stock in Interface & Card Adapters, at today’s prices. Recalculated every night.

Price $26.99
Pricier than about 65% of the 354 comparable items (median $21.99).

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Specifications

Product
Brand nameFervit

Questions about this item

What existing SFF-8643 cables or devices do I need to connect with this adapter?

You need two SFF-8643 male cables or devices — one plugs into each female port on the adapter to complete the link.

Will this SFF-8643 coupler work with my existing PCIe 3.0 backplane and SAS 3.0 drives?

Yes, the adapter meets PCIe 4.0 and SAS 4.0 specifications, so it is backward compatible with PCIe 3.0 and SAS 3.0 equipment.

How can I verify the adapter is passing data at the full 24 Gb/s per lane?

Check your HBA or RAID controller firmware — it should report a negotiated link speed of 24 Gb/s on each connected port.

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