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80 cm SFF-8643 to SFF-8639 U.2 NVMe cable with 15-pin SATA power branch

SMUGDESK

SMUGDESK SFF-8643 Mini SAS HD to SFF-8639 U.2 NVMe SSD Cable 80cm 15-pin SATA Power

SKU CH-PDKW-WZPMB

Connects a U.2 NVMe SSD to a RAID or HBA controller using an 80cm shielded cable with integrated 15-pin SATA power for PCIe 3.0 and 4.0 x4 bandwidth

  • 80 cm length keeps server chassis wiring tidy
  • 15-pin SATA power branch feeds U.2 NVMe drive directly
  • SFF-8643 host plug fits RAID cards, HBA adapters and server boards
  • PCIe 3.0 and 4.0 x4 support unlocks full NVMe speed
  • Multi-layer shielding cuts signal interference for stable high-speed transfer

Server NVMe Expansion Cable

This 80cm SFF-8643 to SFF-8639 cable connects U.2 NVMe SSDs to RAID controllers, HBA adapters or server motherboards with Mini SAS HD ports. It is built for internal storage expansion in servers, NAS units and high-performance workstations. The integrated 15-pin SATA power branch feeds the drive directly from the system power supply.

Integrated Power and Shielding

The 15-pin SATA power connector removes the need for a separate power cable to the U.2 drive, simplifying internal wiring. Multi-layer electromagnetic shielding and high-purity copper cores protect signal integrity inside dense chassis. The 80cm length supports tidy routing and helps maintain airflow around components.

PCIe 3.0 and 4.0 x4 Bandwidth

The cable carries full PCIe 3.0 and PCIe 4.0 x4 protocols so U.2 NVMe SSDs can run at their rated speeds. It fits standard SFF-8643 host ports and 2.5-inch SFF-8639 U.2 drives. Builders who need a different host connector, longer reach or M.2 drive support must choose another cable.

How it compares

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

Price $20.99
Cheaper than about 65% of the 1,224 comparable items (median $26.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the 15-pin SATA power branch need replacement over time?

The 15-pin SATA power connector is a standard interface rated for repeated mating cycles; under normal server use it does not require scheduled replacement.

What bandwidth limit appears first when the cable runs PCIe 4.0 x4 continuously?

The cable is specified for PCIe 3.0 and PCIe 4.0 x4 signalling, so the host controller or drive firmware will reach its thermal or protocol ceiling before the cable itself becomes the bottleneck.

How much heat does the 80cm shielded assembly add during all-day NVMe workloads?

The high-purity copper core and multi-layer shielding are passive; they add negligible heat, and the 80 cm length helps maintain chassis airflow rather than trapping it.

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