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Black 75cm cable with SFF-8643 plug splitting to two SFF-8639 sockets

Vszerda

Vszerda LSI94xx SFF-8643 to SFF-8639 infiniband cable 75cm

SKU CH-8SJ0-0FGJP

Connects two U.2 NVMe drives to a MiniSAS-HD 8X port at 12 Gb/s over 75 cm

  • TypeSerial
  • ColorBlack
  • Length75
  • Connector Number104
  • Connector DetailSff-8643 to Sff-8639
  • Terminal GenderMale-to-Female
  • Connect two U.2 NVMe drives via SFF-8643 72-pin host port
  • 12 Gb/s transfer rate supports high-speed SSD performance
  • 75 cm length fits standard server chassis layouts
  • Male-to-female connectors ensure secure SFF-8639 68-pin drive attachment
  • 104 total contacts maintain reliable signal integrity

Dedicated LSI 94xx cable

This Vszerda cable connects an LSI 94xx controller to two U.2 NVMe SSDs. It uses a single SFF-8643 72-pin MiniSAS-HD 8X plug that splits into two SFF-8639 68-pin receptacles. The assembly is 75 cm long and rated for 12 Gb/s serial data transfer.

Suited for direct U.2 attachment

Builders wiring U.2 drives straight to an LSI 94xx HBA or RAID card will find the pinout and length matched to that platform. It does not serve installations that need a backplane connector, a different controller interface or a longer reach than the fixed 75 cm.

Steady 12 Gb/s throughput

The shielded serial construction maintains the rated 12 Gb/s across both lanes during sustained transfers. Signal integrity holds without the drop-off seen in shorter burst tests, so sequential workloads on the paired NVMe drives run at consistent line speed.

Highlights

  • Connect two U.2 NVMe drives via SFF-8643 72-pin host port
  • 12 Gb/s transfer rate supports high-speed SSD performance
  • 75 cm length fits standard server chassis layouts
  • Male-to-female connectors ensure secure SFF-8639 68-pin drive attachment
  • 104 total contacts maintain reliable signal integrity

Specifications

BrandVszerda
TypeSerial
ColorBlack
Length75
Connector Number104
Connector DetailSff-8643 to Sff-8639
Terminal GenderMale-to-Female
Speed12 gigabits_per_second
SpecificationsSerial
ShieldingData Transfer
FeaturesData Transfer

Questions about this item

Which controller card do I need so the SFF-8643 end of this 75 cm cable plugs in?

The cable is built for LSI 94xx series controllers that present a MiniSAS-HD SFF-8643 8X port.

Will my existing U.2 SSDs with SFF-8639 connectors work at the rated 12 Gbit/s speed on this cable?

Yes — the cable carries 12 Gbit/s SAS signalling to each SFF-8639 68-pin U.2 NVMe drive.

After connecting both ends, how can I confirm the link is running at 12 Gbit/s?

Check the controller BIOS or OS device tree; each U.2 drive should report a 12 Gbit/s negotiated link speed.

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