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Short blue cable with SFF-8643 connectors at both ends

Vszerda

Vszerda SFF-8643 to SFF-8643 12G Mini SAS HD Cable with Sideband 0.5m

SKU CH-4RQ5-BYNKN

Connects SAS or SATA devices at 12 Gbps per lane with sideband support, 0.5 m long

  • 12 Gbps per lane for 48 Gbps total throughput
  • SFF-8643 connectors with sideband support NVMe backplanes and RAID cards
  • 100-ohm impedance maintains signal quality at high speed
  • 5 m length reduces latency inside a chassis
  • Hot-swap and SATA compatible for flexible drive configurations

SFF-8643 Mini SAS HD cable for NVMe backplanes

This 0.5 m internal cable connects NVMe backplanes or RAID cards using SFF-8643 Mini SAS HD connectors. It carries four lanes rated at 12 Gbps each for an aggregate 48 Gbps bandwidth. Sideband signalling is included for drive status and hot-swap control. The 100-ohm construction supports SAS, NVMe and SATA protocols.

For dense server or workstation storage builds

Suits integrators wiring NVMe U.2/U.3 backplanes to RAID controllers or HBAs inside a 1 U or 2 U chassis where a short 1.6 ft reach is sufficient. The sideband wires enable hot-swap LED and enclosure management functions. Not for connections that require a longer run between rack units or external enclosures.

12 Gbps per lane over four lanes

The cable is specified at 12 Gbps per differential pair, giving 48 Gbps total throughput across the four-lane SFF-8643 interface. This rating determines whether the link can saturate modern NVMe SSDs or SAS SSDs without becoming the bottleneck.

Highlights

  • 12 Gbps per lane for 48 Gbps total throughput
  • SFF-8643 connectors with sideband support NVMe backplanes and RAID cards
  • 100-ohm impedance maintains signal quality at high speed
  • 5 m length reduces latency inside a chassis
  • Hot-swap and SATA compatible for flexible drive configurations

Specifications

No published specifications for this item yet.

Questions about this item

Will the 0.5-m SFF-8643 cable reach between my RAID card and NVMe backplane in a 1U chassis?

At 0.5 metres (1.6 ft) it is designed for close-proximity connections inside a rack or server, so it fits typical 1U and 2U internal routing.

Which way do I plug the SFF-8643 connectors so the sideband signals line up?

Each end is keyed; align the notch on the plug with the slot on the port and press straight in until the latch clicks — forcing it upside-down bends the sideband pins.

How often should I replace a 12-Gbps Mini SAS HD cable in a hot-swap bay?

No fixed interval; inspect the latch and connector pins during drive swaps and replace the cable if you see bent pins, cracked housing or intermittent link errors.

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