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Green PCB adapter card with M.2 M-key slot and SFF-8643 Mini SAS connector

Vszerda

Vszerda M-Key NVMe M.2 to SFF-8643 Adapter Expansion Card

SKU CH-P4PF-R0DBR

Converts an M.2 M-Key NVMe SSD to a SFF-8643 Mini SAS link for 2.5" U.2 drives, supports PCIe 4.0 at 64 GT/s and fits 2260 or 2280 modules

  • Converts M.2 NVMe to SFF-8643 Mini SAS for flexible drive connectivity
  • PCIe 4.0 compatible with 64GT/s transfer speed for high-performance storage
  • Backwards compatible with PCIe 3.0 systems for broader platform support
  • Supports M.2 2260 and 2280 form factors for versatile SSD installation
  • Driver-free operation with modern operating systems for plug-and-play simplicity

Adapter Purpose

This Vszerda expansion card converts an M.2 M-Key NVMe SSD connection to an SFF-8643 Mini SAS interface. It enables installation of M.2 2260 or 2280 modules into systems equipped with U.2 SFF-8639 bays via a Mini SAS cable. The adapter targets builders integrating NVMe storage into enterprise-style drive cages or backplanes.

Cable Requirement

The adapter itself provides the M.2 slot and SFF-8643 port; a separate SFF-8639 to SFF-8643 Mini SAS cable is required to reach the U.2 drive but is not included. No drivers are needed for modern operating systems, so the hardware change is the only integration step. This cable dependency defines the deployment cost and cabling layout.

Interface Limits

The card operates under the PCIe 4.0 specification with backward compatibility to PCIe 3.0, delivering a raw data rate up to 64 GT/s. Actual throughput depends on the host platform generation and the installed SSD capabilities. The design supports Intel 750 Series U.2 SSDs and standard M.2 NVMe modules, but it cannot add bandwidth beyond the host link or drive limits.

Highlights

  • Converts M.2 NVMe to SFF-8643 Mini SAS for flexible drive connectivity
  • PCIe 4.0 compatible with 64GT/s transfer speed for high-performance storage
  • Backwards compatible with PCIe 3.0 systems for broader platform support
  • Supports M.2 2260 and 2280 form factors for versatile SSD installation
  • Driver-free operation with modern operating systems for plug-and-play simplicity

Specifications

No published specifications for this item yet.

Questions about this item

Will the SFF-8643 Mini SAS connector need replacement after repeated drive swaps?

The adapter uses a passive SFF-8643 Mini SAS connector rated for standard mating cycles; no active components on the board require scheduled replacement.

What limits sustained throughput when the card runs at PCIe 4.0 speeds?

The 64 GT/s PCIe 4.0 link is the ceiling; actual sustained rates depend on the installed NVMe SSD and host controller capabilities.

Does the adapter generate noticeable heat or draw extra power during all-day operation?

As a passive PCB with no onboard controller or voltage regulation, it adds negligible heat and draws only the minimal power required for signal integrity.

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