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Black 50 cm Mini-SAS HD SFF-8643 to U.2 SFF-8639 cable with SATA power connector

Vszerda

Vszerda 8541691328 Mini-SAS HD SFF-8643 to U.2 SFF-8639 50cm SAS cable

SKU CH-SDME-785AP

Connects a U.2 NVMe SSD to a Mini-SAS HD SFF-8643 port at 16 Gbit/s with integrated SATA power over a 50 cm shielded cable

  • Rated speed16 Gbit/s
  • Connector count68
  • Connector detailsSff-8639
  • Connector genderMale-to-Male
  • Cable shieldingHigh Speed
  • Product typeMini-SAS HD to U.2
  • 16 Gb/s throughput with SFF-8643 to SFF-8639 connectors
  • 50 cm length fits tight server chassis
  • Integrated SATA power delivers 3.3 V and 12 V to NVMe SSD
  • Amphenol manufacture ensures signal integrity
  • RoHS certified for regulated environments

Connection made simple

This 50 cm cable links a Mini-SAS HD SFF-8643 port to a U.2 SFF-8639 NVMe SSD. It targets builders who lack a free PCIe slot but have an onboard SFF-8643 connector or an M.2-to-U.2 add-in card. The male-to-male design carries four lanes at 16 gigabits per second. An integrated SATA power plug feeds the drive with 3.3 V and 12 V from the PSU.

Sustained throughput

The assembly is rated for 12 GB/s across the PCIe 4.0 link and remains compatible with PCIe 3.0 devices. Shielded construction protects signal integrity during long transfers typical of server, workstation or external storage workloads. The 68-pin U.2 connector mates securely with the SSD while the 36-pin Mini-SAS HD end seats firmly in the host port. RoHS certification confirms compliant materials.

Practical build details

Black sleeving and a half-metre length keep routing tidy inside dense chassis without excess slack. The SATA power tail reaches the supply without strain. Note that the cable is verified incompatible with LSI RAID controllers; buyers needing RAID-card attachment must choose a different solution. It serves NVMe SSDs only and does not support SATA or SAS drives.

How it compares

Measured against everything we stock in SAS, SCSI, InfiniBand & MCIO Cables, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 68% of the 1,224 comparable items (median $26.99).

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Specifications

Product
Brand nameVszerda
Model name8541691328
Product typeMini-SAS HD to U.2
Product colorBlack
Performance
Rated speed16 Gbit/s
Ports & slots
Connector count68
Connector detailsSff-8639
Connector genderMale-to-Male
Size & build
Cable shieldingHigh Speed

Questions about this item

Does the 16 Gbit/s Mini-SAS HD cable generate noticeable heat during continuous all-day operation?

The 50 cm shielded SFF-8643 to SFF-8639 cable is a passive copper assembly with no active components, so it produces negligible heat even at full 12 GB/s throughput.

What existing hardware is required to use this SFF-8643 to SFF-8639 cable with a U.2 NVMe SSD?

You need a host with an SFF-8643 Mini-SAS HD 4i port (36-pin) and a standard SATA power connector from the PSU to supply 3.3 V and 12 V to the drive.

Will this SFF-8643 to SFF-8639 cable work with a PCIe 3.0 U.2 NVMe SSD I already own?

Yes, the cable supports PCIe 4.0 x4 and is backward compatible with PCIe 3.0 x4 NVMe SSDs, delivering up to 12 GB/s on either generation.

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